A
bstract
This paper discusses the efficiency issues in purchasing, manufacturing, and transporting over various stages of a supply chain
such as supplier selection, production, and distribution. To address the efficiency questions, we group the supply chain into six
independent areas. Four of these, vendor management, scheduling, inventory management, and transportation, are related to the
product flow, whereas network design and information sharing are non-flow related.
Keywords: Efficiency, Supply Chain Management
Efficiency Issues in Supply Chain Management
S.K. Bhatt*, C.R. Bector**, S.S. Appadoo***
*Professor Emeritus, Department of Supply Chain Management, Asper School of Business, University of
Manitoba, Winnipeg, Canada. Email: [email protected]
**Professor Emeritus, Department of Business Administration, Asper School of Business, University of
Manitoba, Winnipeg, Canada.
***Assistant Professor, Department of Supply Chain Management, Asper School of Business, University of
Manitoba, Winnipeg, Canada. Email: [email protected]
Introduction
For the last two decades, the business organisations are
facing unprecedented challenges to improve efficiency
or productivity. The Black Monday of October, 1987
came as a warning to the business world to find better
ways to do business and the advent of personal computer
added to the competition among the organisations to
affect re-engineering. Even business ethics took its
toll and we saw the collapse of Enron and world dot
com through their cooked up books. The recent stock
market crash since the middle of 2008 added fuel to
fire that caused bank failures and shortage of liquidity
and investments. Several factors came in to the fore:
cure the flagging profitability, improve the bottom line,
improve the short-term share holder’s profit, and the fear
of merger. Governments, industries and businesses have
embraced downsizing and outsourcing as primary cure.
Downsizing has appeared in different paradigms such
as restructuring, reengineering, re-hosting, life-sizing
etc. The ideas of productivity, efficiency, effectiveness,
performance, quality, best practices and flexible
organisations and systems became the common paradigm
of doing business. Even the then Prime Minister of a
socialist country such as India, Atal Bihari Vajpayee,
was coining the word “utpadakta” meaning productivity
during the turn of the century. In this section we will
explain various terms mentioned above, that add to the
success of a business.
The concept of efficiency, effectiveness, quality,
productivity and overall organisational performance
in some form or the other has occupied researchers in
economics as early as 1957 (Ferrell), in management
science (Charnes et al., 1978), productions operations
(Eilon, 1987, Sumanth, 1988), organizational behaviour
(Proctor et al., 1994) and in accounting (Sherman,
1988) etc.). Efficiency is the totality of the outputs that
can be obtained from an economic unit. Effectiveness
is however, a nebulous concept. Bhatt et al. (2004),
while defining the overall productivity measure of
performance of Canadian orchestras in 12 cities, did
discuss what the meaning of effectiveness might entail.
One component of effectiveness is the amount of the
earned revenue generated and the number of audience
brought in. If these results are measured against inputs
provided, this measure would be used as efficiency. This,
of course, is using ‘efficiency’ in a particular way. It does
not measure other potential aspects of efficiency- the
number of musician hours used to rehearse and perform
music, the generation of largest possible audience with
the fewest possible performances or creation of the most
media exposure for the smallest possible advertisement
buy. Then, there is a question and the role of quality. If
the quality of the product or performance is not up to the
satisfaction, it will result in fewer audiences down the
road or a line up for the return of the tickets or products.
Maarten (2008) comes up with a general system theory
explanation that
10 Journal of Supply Chain Management Systems Volume 3 Issue 2 April 2014
effectiveness = actual outputs/ desired outputs.
Effi ciency = actual outputs/ actual inputs
and then productivity is a combination of effectiveness
and effi ciency. In an overall production/manufacturing
system productivity gets defi ned as
effi ciency + effectiveness + quality.
Deming (1986) defi ned
quality = worker’s efforts/ total cost
and argued that increasing quality will reduce cost.
Businesses would ensure quality through return policies
and poor quality would offset the savings garnered in
the input costs. He emphasized the change in the culture
of organisations to accept the dynamic and continuous
nature of quality and effi ciency improvement that it is
a continuous work in progress. A new dimension that is
going to be added to this concept is that of carbon trading.
The concern for global warming is already taking hold in
the “cap and trade” policy under consideration with the
U.S. administration. The call for buying local products to
save the fuel and carbon emissions is becoming a reality.
Any business, industry or government undertakings are
expected to be accountable to their stock/ stake holders
for the funds they provide. This generally guides their
internal culture to produce highest quality of goods and
services at the lowest possible cost. The aim is to follow
the best practices in their operations and dealings. The
concept of “best practices” also deals with effi ciency
and productivity but the concept is socio/technical.
Cormican and O’Sullivan (2004) defi ne a best practice
model as a socio/technical systems approach to all
aspects of organisation. This includes people, process
and the technology related issues. It is the sum total
of the effi ciencies obtained through optimizing the
performance levels strategy, culture, planning, structure
and communication and collaboration. The idea is to asses
where we are and where we aught to be. Productivity
being a well defi ned technical concept but to associate the
performance of the organisation as a whole we will use
effi ciency to defi ne the best practices of an organisation
as an over arching term.
The history of achieving better in a recorded formal
setting such as production or manufacturing or planning
dates back to the times of Taylor, and Gilbreth (time
and motion study) in the early twentieth century . But
the pioneer of it all was William Edward Deming. His
concept of effi ciency, productivity and organisational
performance is in the root of all these discussions of best
practices. His 14 points of management (Deming, 1986)
became a must for every CEO of US business in the
nineties. He helped Japanese business after the Second
World War to improve quality in production as well as in
management. His efforts resulted in developing the just-
in-time manufacturing process at Toyota Motors in 1975.
Deming was a statistician and taught statistical quality
control. He mentioned once that he considered Prof.
Prashanta Mahalanobis one of his gurus. Mahalanobis
was the creator of the second fi ve year plan of India
implemented from 1957-1962. The author is honoured to
have been associated with him during his tenure at Indian
Statistical Institute, Calcutta.
In a general production process, the overall effi ciency or
productivity is defi ned as an aggregate of cost effi ciency,
that converts capital cost into input resources; allocative
(optimal mix of inputs), technical (optimal amount of
inputs) and scale (optimal volume and minimum fi xed
cost) effi ciencies of the transformation process that
convert resources to products, and revenue effi ciency
that converts outputs to cash fl ow as in Fig.1 (Sherman,
1988). Revenue effi ciency, which is the marketing and
sales segment, depends on quality. An improvement in
quality will therefore increase productivity. A study by
General Electric on its dishwasher revealed that a 45%
improvement in quality increased the labour productivity
by 42% (Sumanth, 1988).
Fig. 1: A Production Process
Effi ciency Issues in Supply Chain Management 11
In a complex system dealing with multiple outputs and
multiple inputs, Sumanth (1998), on similar lines, has
classifi ed productivity in four categories:
(a) Partial productivity, which is a ratio of outputs to
only one class of inputs, say labour.
(b) Total factor productivity with only capital and la-
bour inputs.
(c) Total productivity in which all inputs are consid-
ered and
(d) Comprehensive total productivity that also in-
cludes undefi ned qualitative factors such as qual-
ity, relevance etc
Productivity (or effi ciency in reference to organisation as a
whole) is often defi ned as a performance index (PI), which
is a ratio of an output to an input. Ratio analysis typically
involves a number of PIs to gauge the overall performance
of an organisation. Generally PI is meaningful only when
there is a single output and a single input. Brinkerhoff
(1990) gives several such productivity ratios to consider
for an organisation. Governments and business report
their performance citing such indices as ROI (Return on
investment), ROS (return on sales), PE (Price –earning)
ratio etc. National Health Service of UK reports on 400
PIs that are published annually (Thanassoulis et al.,
1996). Thus productivity of an organisation as a whole
is hard to defi ne as it involves several outputs and
multiple inputs, some of them non-commensurable. This
is why, when a productivity improvement program is
designed for a production process, the process is viewed
in several stages. Rastogi (1988) identifi es productivity
improvement in three stages:
(a) Improvement in operation and technology of the
production process by using various methods such
as motion study, ergonomics, work study, value
analysis, learning curves, Quality control, CAD/
CAM, fl exible manufacturing system (FMS) etc.
(b) Improvement in organisation of production pro-
cess using suitable operation research techniques
such as production scheduling, material man-
agement, zero base budgeting network analysis,
PERT-CPM etc to improve allocative effi ciency
and effectiveness.
(c) Human productivity improvement methods such
as job design, job enrichment, rotation, fl extime,
incentives, improving work conditions, and work-
er’s participation to improve quality and labour
productivity.
Su���� C��in M�n�����nt
Bhatt et al. (2006) trace the history of supply chain
management (SCM) and its establishment as a subject
in academia. The new SCM turned out to be the merger
of purchasing and logistics and some more. Purchasing
tended toward an upstream, supplier-facing concept
whereas logistics tend to be outbound, a customer facing
concept. Later, procurement, manufacturing operations
and sales/marketing functions were added in the mix.
Lambert et al. (1998) rendered the most acceptable
defi nition of SCM so far. According to them, SCM is
“the integration of key business processes from end
user through original suppliers that provides products,
services, and information that add value for customers
and other stakeholders.” These key business processes
are: (1) customer relationship management, (2) customer
service management, (3) demand management, (4)
order fulfi llment, (5) manufacturing fl ow management,
(6) supplier relationship management, (7) product
development and commercialisation, and (8) return
management. For our purpose, in this paper, we shall
defi ne SCM as a process of using information with the
objective of optimizing the fl ow of products within a
supply chain. A supply chain is thus a fl ow of goods and
services through:
Suppliers → Manufactures → Distributors → Retailers → Customers
In order to discuss the effi ciency improvement in
activities in various parts a supply chain, we shall divide
the paper into six independent areas. The fi rst four:
vendor (supplier) management, scheduling, inventory
management, and transportation are related to the fl ow
of product and data within the supply chain. Although,
the product fl ow does not necessarily follow this order-
for example, inventories can be places almost anywhere
in the fl ow, this arrangement will be helpful in dealing
with the problem taxonomy in here. Finally, the last two
areas are non-fl ow related, which are: network design and
information sharing.
Su���i�r ��n�����nt
One of the most important components for an effective
supply chain strategy is to have appropriate suppliers.
With SCM, suppliers are no longer an entity that can be
easily replaced. SCM requires partnership and vendor
relation development rather than simple contractual
relationships. In that sense, OR (operations research)
models have been used to support these new requirements.
Bhatt and Borgesa (2005) discuss the operation research
12 Journal of Supply Chain Management Systems Volume 3 Issue 2 April 2014
models in SCM. We shall briefl y discuss strategic issues
and new developments. For this, the problem taxonomy
in this area can be divided in to three categories: supplier
selection, supplier performance evaluation, and supplier
contract negotiation.
Supplier Selecti on
The objective of the vendor selection problem is to
choose from a potential list of vendor candidates the
ones that best suit the company’s interest. At the same
time, the problem also should determine how many
suppliers the company needs, and how much business
has to be allocated to each supplier. Normally, the
supplier selection problem involves attaining multiple
objectives at the same time; therefore, the OR models
used to address this problem tend to have multi-criteria
objectives. The most representative solution methods
that fi t this condition are Multi-objective Programming
(MOP) (Weber and Current, 1993), Data Envelopment
Analysis (DEA) (Weber et al., 2000), and Analytical
Hierarchical Process (AHP) (Nydick and Hill, 1992).
Recently, Appadoo, Bhatt and Bector (2007), and
Appadoo et al. (2008) used the fuzzy TOPSIS method
for the multi-criteria supplier selection problem for a
single decision and a group decision making situation.
For each product, the suppliers were evaluated for the
criteria such as: profi le, technology, quality, delivery
and fl exibility.
Supplier Performance Evaluati on
Once the suppliers have been selected, it is required
to monitor their performance continuously. DEA uses
fractional programming (Charnes et al.,1978; Bhatt,1989)
to compare relatively effi cient suppliers based on multiple
inputs and outputs (Weber, 1996)
Supplier Contract Negoti ati on
As stated before, with SCM, the importance of establishing
a long-term relationship with suppliers is critical. In that
sense, contract negotiation is the fi rst step in establishing
a successful relationship with suppliers. Charles Fishman
(2006) in his book- The Wal-mart Effect, cites an
example (described in section Packaging and Warehouse
Management) as to how they negotiate with the suppliers
to keep up to their slogan- We Sell for Less. Since the
introduction of food section, it is: Save Money, Live
Better. The concept of Reverse Marketing further alludes
to negotiating with suppliers to match the supplies with
the replenishment policies of the company (Leenders and
Blenkhorn, 1988)
Sc��du�in�
Scheduling is also known as production planning and
control. The scheduling process involves all activities
required to determine the amount of products to be
produced in a certain planning horizon (T) to accomplish
a certain demand (D). After determining the demand, the
next step is to prepare the aggregate plan. The aggregate
plan is a preliminary schedule of an organisation’s overall
operations that will satisfy the demand forecast at a
minimum cost (Leung and Chan, 2009). After obtaining
the Aggregate Plan, the next step is to develop the master
production plan. In comparison with the Aggregate Plan,
the master production plan includes capacity restrictions,
and is more short term in nature. Finally, the master
production plan is translated into loading and sequencing
decisions, which mainly deal with deciding which jobs
are going to be assigned to which specifi c work centers,
and in which order this assignment is to be carried out.
But, before we even embark upon production planning,
there are two necessary steps to consider: one, product
screening and two, brand selection. By designing an
appropriate production plan that meets the demand,
minimizes the costs of inventories and the costs of hiring
and fi ring, the manufactures save money and adds to
overall effi ciency.
Product Screening
Research in new product development has identifi ed
product idea (design) screening to be critical in the
development process in order to get a high quality
product. Smimou, Bhatt and Dahl (2005) proposed a
fuzzy analytical approach to a problem of selecting the
best design idea from among fi ve chosen. They were
compared against three criteria: originality, appeal and
effectiveness. In multi-criteria decision making, where
the criteria are not quantifi able and judgment choices are
to be made, fuzzy models are being used increasingly.
Br�nd (�roduct) ����ction
A manufacturer or a retailer or even a consumer often seeks
to purchase the best part or component or a product from
suppliers. Among various brands available, the question
boils down to selecting the one that fi ts their criteria best.
In marketing literature, it is known as the problem of
Effi ciency Issues in Supply Chain Management 13
brand selection. This topic also falls under “purchasing”
which is a vital part of SCM. Not only the businesses, the
national governments do a lot of purchasing that makes a
large part of government budget. The Public Works and
Government Services Canada (PWGSC), of Government
of Canada manages 60,000 transactions annually and
purchases $12 billion in goods and services such as fl u
vaccine, security systems and military aircrafts (www.
tpsgc-pwgsc.gc.ca). For brand (product selection, the
most well know solution method is called scoring model
of Fishbein. Bhatt, Bhatnagar and Appadoo (2009) used
a TOPSIS (Technique for Order Preference by Similarity
to Ideal Solution) method to show over an example of
selecting keynote computers that, it betters the Fishbein
selection..
Enterprise Resource Planning (ERP)
As the organisations are embracing computer technology,
ERP is gaining a high priory in business operations.
ERP is an organisation- technology interface (Wang
et al., 2008). The success of ERP adoption depends on
external factors: vendor support, consultant competence,
and internal factors within the organisation such as ERP
team competence, ERP leadership, top management
support and fi nally, the user support. If ERP lacks these
factors, the studies found that almost 70% of ERP
implementations have been found unsuccessful. Bhatt,
Orellana and Jayaraman (2009) implemented ERP for
a Winnipeg manufacturing fi rm to consolidate separate
production, accounting and purchase systems for four
separate production lines. It saved company a huge
amount of money as well as it made it easier to monitor
inventory levels, issue production orders, and track the
fi nancial health of the organisation.
In��ntor� M�n�����nt
In every segment of a supply chain, there are inventories
in the form of raw material, components, and end product
at manufacturing plants, warehouses, in transportation
and with retailers. These inventories are said to make up
20 to 60 percent of the asset of a fi rm. Therefore, using
proper inventory policies in a supply chain can give a
decisive
edge to a fi rm over its competitors. Inventories carry
huge costs such as variable cost,carrying cast, setup/
order cost, shortage cost, and transportation cost etc.
Managing inventories can be divided into two different
areas: packaging and warehouse management, and multi-
echelon inventory policies.
Packaging and Warehouse Management
Warehouse space is a scarce resource in many organisa-
tions; therefore it is important to fi nd the optimal arrange-
ment to place products in a warehouse – this objective is
formally known as Warehouse Management. One of the
earliest problems studied in this area was the packaging
problem. The problem objective is to determine the size
and number of packaging boxes that will minimise the to-
tal system cost. Packaging occupies valuable warehouse
and shelf space. With the new emphasis of environmen-
tal concerns, there has been a constant emphasis on bio-
degradability and waste management (Davis and Song,
2006)). There has been a surge in polymer, polythene,
plastic and polyester based packaging during eighties
and nineties. The jute industries of West Bengal and East
Bengal went in to a slump.
Charles Fishman in his book- The Wal-Mart Effect (2006)
cites an example of cooperation among the retailers and
suppliers that can change the mode of doing business and
enhance the savings not only for businesses and customers
but for environment as well. In the nineties, nearly every
brand and style of deodorant-roll- on and solid, powder-
fresh or unscented, came in a cardboard box. The product
already came in a sturdy and solid can or plastic container.
The box took up shelf space. It wasted cardboard.
Shipping the weight of cardboard wasted fuel. The box
itself cost money to design, to produce. The box turned
out to cost a nickel (fi ve cents). Half of it went to the
suppliers and the remaining to the customers. With 200
million adults in US, it caused a savings of $10 million
of which $5 million, the customers got to keep. This is
repeated atleast fi ve times a year. Millions of trees were
not cut down, acres of cardboard were not manufactured
only to be discarded and one billion of deodorant boxes
did not end up in landfi lls.
Inventory Policies
As stated above, the inventories in a supply chain form a
multi-echelon system. Inventories are supplied down the
stream of the supply chain from:
Suppliers Manufactures Distributors Retailers Customers.
However, the inventories are demanded from customers
to the upstream. The inventory demands are probabilistic
and periodic (say monthly or when the stocks are about to
fi nish and the order is triggered by the safety stock (s,S)
or a (s,Q) policy. The proper ordering policies would have
two objectives. One is to minimize the total inventory
14 Journal of Supply Chain Management Systems Volume 3 Issue 2 April 2014
cost that consists of: (1) purchase or manufacturing cost,
(2) inventory holding cost and (3) back-logging cost.
The second objective is to minimize or even eliminate
the “bullwhip effect”- the amplifi cation of demand
variability from a downstream site to an upstream site.
Supply chains are normally categorized in to three
types: arborescence chains, where each node supplies
more than one downstream node, coalescence chains,
where each node is supplied by more than one upstream
node. The fi nal type is a serial chain, where each node is
supplied by only one upstream node and supplies to only
one downstream node. These problems are immensely
challenging even for simple serial chain. Literature is
dense with solution methods ranging from mathematical
modeling to simulation. For a good appreciation of this
topic, see Aharon et al. (2009).
Tr�n��ort�tion
Transportation is the process of moving inventory among
nodes in the supply chain. A supply chain may have a
very complicated network with several nodes; hence, it is
critical to optimize the fl ow of materials in the supply chain
using adequate transportation procedures and logistical
support. More and more manufacturing, businesses and
industries are relying on the 3PL (third party logistics)
to move their goods due to the sophisticated nature of
logistics and transportation. For example, Dell Computer
Company does their business electronically through their
website to save the fi xed costs. Their monitors are built in
Mexico and the hard drives are made in China. All they
do in US is assemble and ship. The problem taxonomy in
this area can be grouped in to two types. The fi rst type is
the routing problem, which is related to fi nding optimal
transportation routes. The second type of problem is the
transportation scheduling problem, which deals with
determining the optimal order of different transportation
systems.
Vehicle Routi ng Problems
The Vehicle Routing Problem (VRP) is defi ned as the
problem of fi nding a set of routes for a fl eet of vehicles
which have to service a number of stops or nodes. The
vehicles depart and arrive at a single depot. This is
similar to the standard traveling salesman problem, and
the Chinese postman problem. In combinatorial analysis,
this is an NP-hard problem. Therefore, there are several
heuristics. Breedam (2001) compares a descent (local
optimizer) heuristics and two meta-heuristics: Simulated
annealing and Tabu Search.
The voluminous research in this fi eld, though mostly
theoretical, does translate in to useful practical
implications. For example, the well known UPS (united
postal service) designs their routes so that the vehicles
avoids taking left turns as much as possible while
distribution. It saves the company loads of money in gas
by avoiding idling at the intersections and time delays.
The Transportati on Scheduling Problem
The transportation scheduling problem states that after
the optimal routing has been established, the problem
now would be to decide what quantity of which product to
transport by how many vehicles over a given period from
a node to another downstream so that the total inventory
costs and total transportation costs are minimized.
(Arunapuram et al., 2003).
N�t�or� D��i�n
The objective of the facility location problem is to
determine the optimal location of plants, warehouses,
and distribution centers, etc., which minimizes the total
production and distribution costs. Facility location
problems are also known as fi xed charge problems;
because, if a company decides to open a facility, it will
need to incur in a fi xed cost (the fi xed charge). Due to the
fi xed charge nature of the problem, the solution methods
of management science models normally use binary
variables (Nickel et al., 2003). These problems are also
known as facility location and capacity allocation. There
are immense incentives and perks given to companies
to open their businesses by the local, state or federal
governments to create job opportunities for the people
of that region. Then, the “client matching” is done if a
group of clients (retailers) can be served by a common
warehouse to save transportation costs.
Location in network design is a key factor that enhances
the effi ciency of the SCM, by reducing the long term costs
of inventory and transportation. One has only to look at
the Wal-Mart’s example of location and market place.
In 2006 (Fishman), there were 2074 Wal-Mart stores in
US. More than half of Americans live within fi ve miles
of a Wal-Mart store, less than a 10-minute drive away.
Ninety percent of Americans live within 15 miles of a
Wal-Mart store. The retail chain has obviously redefi ned
the effi ciency by expanding the business while reducing
the prices.
Effi ciency Issues in Supply Chain Management 15
In�or��tion S��rin�
Information sharing is probably the most important
concept behind the SCM theory. The whole SCM theory is
based on the idea that cooperation yields better results for
the players in the supply chain. Many SCM researchers
have tried to evaluate the impact of information sharing
by using game theory.
A representative example, here, would be of Aviv (2001)
who developed a game theory model to analyze a two-
member supply chain (a retailer and a supplier). The
author used two scenarios in its model: the fi rst scenario,
called local forecasting by the author, assumes that
each member updates the forecasts of future demands
locally without cooperation. The second scenario, called
collaborative forecasting by the author, assumes that the
players in the supply chain jointly maintain an update a
single forecast. The author concludes that both scenarios
can bring benefi ts to the supply chain. The fi rst scenario’s
benefi ts mainly depend on the forecasting strength of
each individual. On the other hand, the second scenario’s
benefi ts are primarily when each player in the supply chain
has different forecasting strengths, and those strengths are
used together in a single forecast effort.
Supply chain practice focuses on material movement
whereas information sharing focuses on information
fl ow about demand upstream. Information sharing has
three components to it: information sharing support
technology, information content, and information quality.
The objective of information sharing about the forecast
of demands at different nodes of the supply chain is to
improve delivery performance. Delivery performance
is measured against: (i) committed date of delivery, for
which percent of late deliveries becomes a performance
measure (less is better), (ii) order fulfi llment rate and (iii)
delivery reliability (order fulfi llment lead time). A good
read on this topic would be Zhou and Benton Jr. (2007)
and Yu et al. (2009).
Conc�udin� R���r�� �nd Furt��r
R����rc�
The effi ciency of a supply chain is a sum total of the local
effi ciencies at different nodes or components of a supply
chain. This would further enhance if proper information
sharing is conducted in the system. There have been
several attempts to actually and formally defi ne an
effi ciency measure of a supply chain, end to end. Silva et
al. (2009) do provide a formal measure as:
PSCM = ∑wi× fi
where, j= 1,…,n, is the number of partners in the supply
chain, wi is the weight that measures the importance of
the partner in network, and fi is the contribution of each
of the partners to the evaluated cost of the supply chain
in monitory units. This topic is still growing and more
research is needed to support the analytic modeling to
company specifi c situations .
R���r�nc��
Aharon, B. T., Boaz, G., & Smirit, S. (2009). Robust
multi-echelon multiperiod inventory control. European
Journal of Operations Research, 199, 922-935.
Appadoo, S. S., Bhatt, S. K., & Bector, C. R. (2007).
Possibility Supported TOPSIS model with Application
to Vendor Selection Problem in Supply Chain man-
agement’. Proceeding of the Administrative Sciences
Association of Canada Conference, Ottawa, Canada.
Appadoo, S. S., Bhatt, S. K., Bector, C. R., & Sharma,
V. N. (2009). “(φ,λ) Mixed Strategy for Group Multi-
Attribute TOPSIS model with Application to Supplier
Selection Problem. Proceeding of the Administrative
Sciences Association of Canada Conference Niagara
Falls, Canada.
Arunapuram, S., Mathur, K., & Solow, D. (2003).
Vehicle Routing and Scheduling with Full Truckloads.
Transportation Science, 37( 2), 170–182.
Bhatt, S. K. (1989). Equivalence of Various Linearization
Algorithms fjor Linear Fractional programming, ZOR-
Methods and Models of Operations Research. Physica-
Verlag, Germany, 33, 39-43.
Bhatt, S. K., Bhatnagar, N., & Appadoo, S. S. (2009).
‘Consumer Choice Model Via TOPSIS. Presented at
the annual conference of the SJDM (the society for
judgment and decision Making), Boston, USA, 21-23,
2009.
Bhatt, S. K., & Borgesa, R. (2005). Operations Research
Models in Supply Chain Management. Proceeding of
the Administrative Sciences Association of Canada
Conference, Toronto, Canada.
Bhatt, S. K., Duggan, B., & Rheault, M. (2004).
Measuring Best Practices in Canadian Orchestras
using Data Envelopment Analysis. Proceeding of
the Administrative Sciences Association of Canada
Conference, Quebec city, Quebec, Canada.
Bhatt, S. K., P. Earl, E., Foropan, C., Larson, P.,
McLachlin, R., Morris, M., Prentice, B., Rosenbloom,
E., & Tyrchniewicz, E. (2006). At the center of it all
: SCM in a New Academic Department. Proceeding
16 Journal of Supply Chain Management Systems Volume 3 Issue 2 April 2014
of the Administrative Sciences Association of Canada
Conference, Banff, Alberta, Canada.
Bhatt, S. K., Orellana, C., & Jayaraman, S. (2009). ERP
Implementation in a Window Manufacturing Company
in Winnipeg, Canada, MBA Project, Asper School of
Business, University of Manitoba, Winnipeg, Canada.
Breedam, A. V. (2001). Comparing descent heuristics
and met heuristic for the Vehicle Routing Problem.
Computers and Operations Research, 28, 289-315.
Brinkerhoff, R. O., & Dressler, D. E. (1990). Productivity
measurement, a guide for manager and evaluators.
Sage Publication, New Delhi.
Charnes, A, Cooper, W. W., & Rhodes, E. (1978),
Measuring the effi ciency of decision making units.
European Journal of Operation Research, 2, 429-444.
Cormican, K., & O’Sullivan, D. (2004). Auditing Best
Practices for Effective product Innovation Management
Technovation, 24, 819-829.
Davis, G., & Song, J. H. (2006). Biodegradable Packaging
Based on Raw Materials from Crops and their Impact
on Waste Management. Industrial Crops and Products,
23, 147-161.
Deming, W. E. (1986). Out of Crisis, MIT press.
Eilon, S. (1987). Defi nition and effect of productivity on
corporate performance, Omega, 15, 389-393.
Farrell, M. J.(1957). The measurement of productivity ef-
fi ciency. Journal of Royal Statistical Science series A,
120,253-281.
Fishman, C. (2006). The wal-mart effect. Penguin Press.
Lambert, D. M., Cooper, M., & Pagh, J. (1998). Supply
Chain management: Implementation issues and
Research opportunities. International Journal of logis-
tic management, 9(2), 1-19.
Leender, R. M., & Blenkhorn, D. L. (1988). Reverse
Marketing. Collier Macmillan Pub., London.
Leung, C. H., & Chan, S. W. (2009). A goal program-
ming model for aggregate production planning with re-
source utilization constraint. Computers and Industrial
Engineering, 56, 1053-1064.
Maarten, W. (2008). Effi ciency and Effectiveness =
Productivity. Retrieved from authorsden.com
Nickel, S., Puerto, J., & Rodriguez-Chia, A. M. (2003).
An approach to location models involving sets as ex-
isting facilities. Mathematics of Operations Research,
28(4), 693–715.
Nydick, R. L., & Hill, R. P. (1992). Using AHP to structure
the supplier selection procedure. International Journal
of Purchasing and Materials Management, 31-6.
Proctor, S. J., Rowlingson, M., McArdle, L., Hassard,
J., & Forrestor, P. (1994). Flexibility, Politics and
Strategy: In defense of the model of fl exible fi rms.
Work Employment and Society, 8, 221-242.
Rastogi, P. N. (1988). Productivity, innovation, manage-
ment and development. Sage Publications, New Delhi.
Sherman H. D.(1988).Service organization productivity
management, Society of management accountants of
Canada, Hamilton, Ont, Canada.
Silva, C.A., Sousa, J. M. C., Runkler, T. A., & Sa da Costa,
J. M. G. (2009). Distributed supply chain management
using ant colony optimization. European Journal of
Operations Research, 199, 349-358.
Smimou, K., Bhatt, S.K., & Dahl, D.W. (2005). New
product ideas screening decisions with approximate
evaluation: an optimization approach. Fuzzy Economic
Review, 10(20), 45- 57.
Sumanth, D.J.(1998). Total productivity management:
A systematic and qualitative approach to compete in
quality, price and time, St-Lucie Press, Boca Raton,
Florida, USA.
Thanassoulis, E. A., Boussofi ane, R., & Dyson, G. (1996).
A comparison of data envelopment analysis and ratio
analysis as a tool for performance assessment, Omega,
24, 229-244.
Wang, E. T. G., Shih, S. P., Jiang, J. J., & Klein, G.
(2008). The consistency among facilitating factors and
erp implementation success: A holistic view of fi t. The
Journal of Systems and Software, 81, 1609-1621.
Weber, C. A., (1996). A data envelopment analysis ap-
proach to measuring vendor performance. Supply
Chain Management, 1(1), 28-30
Weber, C. A., & Current J. R. (1993). A multi-objective
approach to vendor selection. European Journal of
Operational Research, 68, 173-84.
Weber, C. A., Current, J., & Desai, A. (2000). An optimi-
zation approach to determining the number of vendors
to employ. Supply Chain Management, 5(2), 90-98.
Yu, M. M., Ting, S. C., & Chen, M. C. (2009). Evaluating
the cross-effi ciency of information sharing in supply
chains. Expert Systems with Applications. In Press.
Zhou, H., & Benton Jr., W. C. (2007). Suppply chain prac-
tice and information sharing. Journal of Operations
Management, 25, 1348-1365.
Reproduced with permission of copyright owner. Further reproduction prohibited
without permission.
BUSI 613
JOURNAL ARTICLE REVIEW ASSIGNMENT INSTRUCTIONS
OVERVIEW
MBA programs around the country are starting to require their students to become more effective
writers. This is in response to industry’s urging for grad schools to improve the writing skills of
graduate students. Writing at the MBA level should be informative, colorful, and nuanced, and
the writing should include simple words vs. complicated (especially if used out of context).
As you read the journal articles for this course, remember the context of the MBA degree. The
MBA is a practitioner’s degree. The degree signifies that you can think, analyze, solve problems;
and then communicate solutions to business executives effectively and efficiently. Your analysis
of the discussion in the articles, their relationship to this course, and implications related to the
each reading assignment will prepare you to communicate in this manner.
INSTRUCTIONS
In each assigned module, you will choose 1 journal article from those provided in the course.
Reviews of substitute articles will not be accepted. Write a Journal Article Review of 900-1200
words, not including the title page or reference page. For each Journal Article Review, you
must discuss how the theoretical model or treatment described in the article compares to the
information discussed in your textbook. No more than 20% of each Journal Article Review
may be quotations. You must cite and reference the original article, the course textbook, and one
additional scholarly article.
Each Journal Article Review assignment must include these sections:
Title page
Article caption at top of first page of text (current APA style) to identify the article
Statement of the author's purpose
Background of the issue
Application of supply chain management theory relevant to article
Managerial implications of article findings (2–3 paragraphs)
Summary of the article and its context
References (Current APA style)
Students must follow this format for their review.
Chapter
Five
Warehousing
Packaging
and
Materials
Handling
Warehousing,
Handling,
and
Chapter
Outline
Strategic
Warehousing
Service
Benefits
Economic
Benefits
Warehouse
Ownership
Arrangements
Private
Public
Contract
Network
Deployment
Warehouse
Decisions
Site
Selection
Design
Product-Mix
Analysis
Expansion
Handling
Layout
Sizing
Warehouse
Operations
Primary
Warehouse
Operations
Product
Handling
Product
Handling
Considerations
Storage
Secondary
Warehouse
Operations
Accuracy
and
Audits
Security
Safety
and
Maintenance
Environmental
Concerns
and
Regulatory
Environment
Systems
Warehouse
Management
Systems
Yard
Management
Systems
Information-Directed
Systems
Packaging
Perspectives
Packaging
for
Handling
Efficiency
Package
Design
Unitization
Communication
Summary
Study
Questions
Challenge
Questions
Supply
Chain
Logistics
Management,
Fifth
Edition
|
CHAPTER
9
Materials
Packaging
219
Chapter
9
Warehousing,
Materials
Handling,
and
Packaging
production
strategies.
While
the
basic
notion
of
JIT
is
to
reduce
work-in-process
inventory,
such
manufacturing
strategies
need
dependable
logistics
support.
On
the
outbound,
or
market-facing,
side
of
manufacturing,
warehouses
can
be
used
to
create
product
assortments
for
customer
shipment.
The
capability
to
receive
mixed
prod-
uct
shipments
offers
customers
two
specific
advantages.
First,
logistical
cost
is
reduced
because
an
assortment
of
products
can
be
delivered
while
taking
advantage
of
consoli-
dated
transportation.
Second,
inventory
of
slow-moving
products
can
be
reduced
because
of
the
capability
to
receive
smaller
quantities
as
part
of
a
larger
consolidated
shipment.
Manufacturers
that
provide
sorted
and
sequenced
product
shipments
on
a
timely
basis
are
positioned
to
achieve
a
competitive
advantage.
An
important
goal
in
warehousing
is
to
maximize
flexibility.
Flexibility
is
facilitated
by
information
technology.
Technology
has
influenced
almost
every
aspect
of
warehouse
operations
by
creating
new
and
better
ways
to
perform
storage
and
handling.
Flexibility
is
also
an
essential
part
of
being
able
to
respond
to
ever-changing
customer
demand
in
terms
of
product
assortments,
value-added
services,
and
the
manner
in
which
shipments
are
sequenced
and
presented.
Information
technology
facilitates
flexibility
by
allowing
warehouse
operators
to
quickly
react
to
changing
customer
requirements.
Benefits
realized
from
strategic
warehousing
are
classified
as
service
and
economic.
No
warehousing
should
be
included
in
logistical
system
unless
it
is
fully
justified
on
some
combination
of
cost
and
service.
Ideally,
a
warehouse
will
simultaneously
provide
both
service
and
economic
benefits.
Service
Benefits
Warehouses
can
provide
services
that
enhance
top-line
revenue
growth.
When
a
ware-
house
is
primarily
justified
on
service,
the
supporting
rationale
is
that
profits
from
sales
improvements
will
more
than
offset
added
cost.
It is
a
difficult
assignment
to
quantify
service
return-on-investment
because
it’s
hard
to
measure.
For
example,
establishing
a
warehouse
to
service
a
specific
market
may
increase
cost
but
should
also
increase
market
sales,
revenue,
and
potentially
gross
margin.
Warehouses
can
improve
service
in
three ways:
(1)
spot-stocking,
(2)
full-line
stocking,
and
(3)
value-added
services.
Spot-Stocking
Spot-stocking
is
typically
used
to
support
customer
requirements.
Manufacturers
of
highly
seasonal
products
often
spot-stock.
Instead
of
maintaining
inventory
in a
warehouse
year-
round,
or
shipping
to
customers
direct
from
manufacturing
plants,
responsiveness
in
peak
selling
periods
can
be
enhanced
through
temporary
inventory
positioning
in
strategic
mar-
kets.
Under
this
concept,
select
inventory
is
positioned
or
spot-stocked
in
a
local
market
warehouse
in
anticipation
of
responding
to
customer
need
during
the
critical
sales
period.
Utilizing
warehouse
facilities
for
spot-stocking
allows
inventories
to
be placed
in
a
variety
of
markets
adjacent
to
key
customers
just
prior
to
a
period
of
high
seasonal
sales.
For
example,
agricultural
fertilizer
companies
sometimes
spot-stock
near
farmers
in
anticipa-
tion
of
the
growing
season.
After
the
growing
season,
such
spot-stocking
would
likely
be
reduced
or
eliminated.
Full-Line
Stocking
The
traditional
use
of
warehouses
by
manufacturers,
wholesalers,
and
retailers
is
to
stock
product
inventory
combinations
in
anticipation
of
customer
orders.
Typical
retail-
ers
and
wholesalers
provide
inventory
assortments
of
multiple
products
from
different
Supply
Chain
Logistics
Management,
Fifth
Edition
221
Chapter
9
Warehousing,
Materials
Handling,
and
Packaging
be
reduced.
When
total
cost
reductions
are
achievable,
the
warehouse
is
economically
justified.
Four
basic
economic
benefits
are:
(1)
consolidation
and
break-bulk,
(2)
sorting,
(3)
seasonal
storage,
and
(4)
reverse
logistics.
Consolidation
and
Break-Bulk
The
economic
benefits
of
consolidation
and
break-bulk
are to
reduce
transportation
cost
by
using
warehouse
capability
to
increase
the
size
of
shipments.
In
consolidation,
the
warehouse
receives
inventory,
from
a
number
of
sources,
that are
combined
into
a large
single
shipment
to
a
specific
destination.
The
benefits
of consolida-
tion
are the
realization
of
the
lowest
possible
freight
rate,
timely
and
controlled
delivery,
and
reduced
congestion
at
a
customer’s
receiving
dock.
The
consolidation
enables
both
the
inbound
movement
from
origin
and
the
outbound
movement
to
destination
to
be
consoli-
dated
into
a
larger
shipment,
which
generally
results
in
lower
transportation
charges
per
unit
and
most
often
quicker
delivery.
A
break-bulk
operation
receives
a
single
large
shipment
and
arranges
for
delivery
to
multiple
destinations.
Economy
of
scale
is
achieved
by
transporting
the
larger
shipment
from
origin
to
destination.
The
break-bulk
warehouse
or
terminal
sorts
or
splits
the
larger
shipment
into
individual
orders
for
customer
delivery.
Both
consolidation
and
break-bulk
arrangements
use
warehouse
capacity
to
improve
transportation
efficiency.
Many
logistical
arrangements
involve
both
consolidation
and
break-bulk.
Figure
9.1
illustrates
each
activity.
Sorting
The
basic
benefit
of
sorting
is
to
reconfigure
freight
as
it
is
being
transported
from
ori-
gin
to
destination.
Three
types
of
assortment—cross-docking, mixing,
and
assembly—are
widely
performed
in
logistical
systems.
Consolidation
Plant
A
Customer
~~
“vareouses
ala|c
Plant
C
Break-Bulk
Customer
A
Pant
A
Aa
Customer
B
Customer
C
Supply
Chain
Logistics
Management,
Fifth
Edition
FIGURE
9.1
Consolidation
and
Break-Bulk
Arrangements
223
Chapter
9
Warehousing,
Materials
Handling,
and
Packaging
225
Cross-Dock
FIGURE
9.2
Sorting
Arrangements
Company
A
or
Plant
A
Customer
A
Company
B
ee
or
Distribution
Customer
B
ae
center
Customer
C
Company
C
or
Plant
C
Mixing
Customer
W
A
B
cy;D
Pied
A.
Customer
X
A
B
€||>
Mixing
Product
B
point
Customer
Y
Product
D
A
|
B
c
Product
C
Customer
Z
A
B
Sorting
and
Assembly
Vendor
A
Lead
supplier
Vendor
B
distribution
Manufacturing
plant
center
Vendor
C
Or
Vendor
A
Retail
.
Vendor
B
distribution
Retail
store
center
Vendor
C
Chapter
9
Warehousing,
Materials
Handling,
and
Packaging
for
lease
that
fits
specialized
logistical
requirements;
for
example,
the
physical
nature
of
an
available
building
may
not
be
conducive
for
efficient
handling,
such
as
buildings
with
inappropriate
storage
racks
or
with
shipping/receiving
dock
or
support
column
con-
straints.
The
only
suitable
course
of action
may
then
be
to
design
and
arrange
for
new
construction.
The
major
benefits
of
private
warehousing
are
control,
flexibility,
cost,
and
a
range
of
intangibles,
Private
warehouses
offer
substantial
control
since
management
has
authority
to
prioritize
activities.
Such
control
should
facilitate
integration
of
warehouse
operations
with
the
balance
of
a
firm’s
logistics
operations.
Private
warehouses
generally
offer
more
flexibility
since
operating
policies,
hours,
and
procedures
can
be
adjusted
to
meet
specific
customer
and
product
requirements.
Firms
with
very
specialized
customers
or
products
are
often
motivated
to
own
and
operate
warehouses.
Private
warehousing
is
usually
considered
less
costly
than
public
warehousing
because
private
facilities
are
not operated
for
a
profit.
As
a
result,
both
the
fixed
and
variable
cost
components
of
a
private
warehouse
may
be
lower
than
for-hire
counterparts.
Finally,
private
warehousing
may
offer
intangible
benefits.
A
private
warehouse,
with
the
firm’s
name
on
its
sign,
may
stimulate
customer
perceptions
of
responsiveness
and
sta-
bility.
This
perception
may
provide
marketing
image
in
comparison
to
competitors.
Despite
the
noted
benefits,
the
use of
private
warehousing
is
declining
because
of
an
increasing
managerial
interest
in
reducing
capital
invested
in
logistical
assets.
Also,
the
perceived
cost
benefit
of
private
warehousing
is
potentially
offset
by
a
public
warehouse’s
ability
to
gain
operational
economies
of
scale
and
scope
as
a
result
of
the
combined
throughput
of
multiple
clients.
Public
Public
warehouses
are
used
extensively
in
logistical
systems.
Almost
any
combination
of
services
can
be
arranged
on
a
for-hire
basis
for
either
short
or
long
term.
Public
warehouses
have
traditionally
been
classified
based
on
operational
specialization
such
as
(1)
general
merchandise,
(2)
refrigerated,
(3)
special
commodity,
(4)
bonded,
and
(5)
household
goods
and
furniture,
General
merchandise
warehouses
are
designed
to
handle
package
products
such
as
elec-
tronics,
paper,
food,
small
appliances,
and
household
supplies.
Refrigerated
warehouses
typically
offer
frozen
or
cooler
capacity
designed
to
protect
food,
medical,
photographic,
and
chemical
products
requiring
temperature
control.
Special
commodity
warehouses
are
designed
to
handle
bulk
material
or
items
requiring
special
handling,
such
as
tires
or
clothing.
Bonded
warehouses
are
licensed
by
the
government
to
store
goods
prior
to
payment
of
taxes
or
import/export
duties.
They
exert
tight
control
over
movements
in
and
out
of
the
facility,
since
documents
must
accompany
each
move.
Finally,
household
goods
or
furniture
warehouses
specialize
in
handling
and
storing
large,
bulky
items
such
as
appliances
and
furniture.
Of
course,
many
public
warehouses
offer
a
combination
of
services.
Public
warehouses
provide
flexibility
and
shared
services
benefits.
They
have
the
potential
to
offer
operating
and
managementexpertise
since
warehousing
is
their
core
business.
From
a
financial
perspective,
public
warehousing
may
be
able to
achieve
lower
operat-
ing
cost
than
private
facilities.
Such
variable
cost
differential
may
result
from
lower
wage
scales,
better
productivity,
and
shared
overhead
among
clients.
Public
warehouses
typi-
cally
do
not
require
capital
investment
on
the
part
of
their
customers.
When
management
performance
is
judged
according
to
return
on
investment,
the
use of
public
warehousing
can
be
an
attractive
alternative.
Public
warehousing
offers
flexibility
concerning
size
and
Supply
Chain
Logistics
Management,
Fifth
Edition
227
Chapter
9
Warehousing,
Materials
Handling,
and
Packaging
Warehouse
Decisions
The
basic
concept
that
warehouses
provide
an
enclosure
for
material
storage
and
handling
requires
detailed
analysis
before
the
size,
type,
and
shape
of
the
facility
can
be
determined.
This
section
reviews
planning
issues
that
establish
the
character
of
the
warehouse,
which
in
turn
determines
attainable
handling
efficiency.
These
decisions
are
more
common
in
private
warehousing
as
compared
to
public
when
facilities
already
exist.
Site
Selection
The
first
task
is
to
identify
both
the
general
area
and
then
the
specific
warehouse
location.
The
general
area
concerns
the
broad
geography
where
an
active
warehouse
makes
sense
from
a
service,
economic,
and
strategic
perspective.
The
general
question
focuses
on
the
broader
geographic
area
as
illustrated
by
the
need
to
place
a
warehouse
in
the
Midwest,
which
generally
implies
having
a
facility
in
Illinois,
Indiana,
or
Wisconsin.
In
contrast,
a
retailer
such
as
Target
or
Home
Depot
typically
selects
a
warehouse
location
that
is
central to a
prerequisite
number
of
retail
store
locations.
Thus,
the
selection
and
number
of
retail
outlets
drive
the
support
warehouse
location.
Network
design
is
discussed
in
Chapter
11.
Once
the
general
warehouse
location
is
determined,
aspecific
building
site
must
be
identified.
Typical
areas
in
a
community
for
locating
warehouses
are
commercial
develop-
ments
and
outlying
or
suburban
areas,
The
factors
driving
site
selection
are
service
avail-
ability
and
cost.
Land
cost
is
an
important
factor.
In
many
cities,
warehouses
are
among
industrial
plants
and
in
areas
zoned
for
light
or
heavy
industry.
Most
warehouses
can
oper:
ate
legally
under
the
restrictions
placed
upon
general
commercial
property.
Beyond
procurement
cost,
setup,
and
operating
expenses
such
as
transport
access,
util-
ity
hookups,
taxes,
and
insurance
rates
require
evaluation.
The
cost
of
essential
services
may
vary
extensively
between
sites.
Several
other
requirements
must
be
satisfied
before
a
site
is
selected.
The
site
must
offer
adequate
room
for
expansion.
Necessary
utilities
must
be
available.
The
soil
must
be
capable
of
supporting
the
structure.
The
site
must
be
sufficiently
high
to
afford
proper
water
drainage.
Additional
requirements
may
be
situationally
necessary,
depending
upon
the
structure
to
be
constructed.
For
these
reasons
and
others,
the
final
selection
of
the
site
should
be
preceded
by
extensive
analysis.
Design
Warehouse
design
must
consider
product
movement
characteristics.
Three
factors
to
be
determined
during
the
design
process
are
the
number
of
floors
to
include
in
the
facility,
a
cube
utilization
plan,
and
product
flow.
The
ideal
warehouse
design
is
a
one-floor
building
that
eliminates
the
need
to
move
product
vertically.
The
use
of
vertical
handling
devices,
such
as elevators
and
conveyors,
to
move
product
from
one
floor
to
the
next
requires
time
and
energy,
and
typically
creates
handling
bottlenecks.
So,
while
it
is
not
always
possible,
particularly
in
business
districts
where
land
is
restricted
or
expensive,
as a
general
rule
distribution
warehouses
should be
designed
as
one-floor
operations
to
facilitate
handling.
Warehouse
design
must
maximize
cubic
utilization.
Most
warehouses
are
designed
with
30-
to
40-foot
clear
ceilings,
although
selected
automated
and
high-rise
handling
equip-
ment
can
effectively
use
heights
over
100
feet.
Maximum
effective
warehouse
height
is
lim-
ited
by
the
safe
lifting
capabilities
of
handling
equipment,
such
as
lift
trucks,
rack
design,
and
fire
safety
regulations
imposed
by
sprinkler
systems.
Supply
Chain
Logistics
Management,
Fifth
Edition
229
Chapter
9
Warehousing,
Materials
Handling,
and
Packaging
Handling
A
handling
system
is
the
basic
driver
of
warehouse
design.
A
warehouse
is
appropriately
viewed
as a
structure
designed
to
facilitate
efficient
product
flow.
It
is
important
to
stress
that
the
handling
system
must
be
selected
early
in
the
warehouse
development
process.
Handling
equipment
and
technology
are
discussed
later
in
this
chapter.
Layout
The
layout
or
storage
areas
of
a
warehouse
should
be
planned
to
facilitate
product
flow.
The
layout
and
the
handling
system
are
integral.
In
addition,
special
attention
must
be
given
to
location,
number,
and
design
of
receiving
and
loading
docks.
It is
difficult
to
generalize
warehouse
layouts
since
they
are
usually
customized
to
accommodate
specific
product
handling
requirements.
If
pallets
are
utilized,
an
early
step
is
to
determine
the
appropriate
size.
A
pallet
of
nonstandard
size
may
be
desirable
for
spe-
cialized
products.
The
most
common
pallet
sizes
are
40
x
48
inches
and
32
x
40
inches.
Analysis
of
product
cases,
stacking
patterns,
and
industry
practices
will
determine
the
size
of
pallet
best
suited
to
the
operation.
The
second
step
in
planning
warehouse
layout
involves
pallet
positioning.
The
most
common
practice
in
positioning
pallets
is
at
90
degree,
or
square,
placement
to
the
aisle.
The
placement
of
specific
products
in
selected
pallet
locations
is
called
slotting.
Naturally,
key
to
an
efficient
layout
is
a
well-developed
slotting
plan.
Finally,
the
handling
equipment
must be
integrated
to
finalize
layout.
The
path
and
tempo
of
product
flow
depend
upon
the
handling
system.
To
illustrate
the
relationship
between
handling
and
layout,
two
systems
and
their
respective
layouts
are
illustrated
in
Figure
9.4.
These
examples
represent
two
of
many
possible
layouts.
Supply
Chain
Logistics
Management,
Fifth
Edition
231
YL
T/
Truck
Receiving
Picking
Area
Storage
Area
Remote
Storage
i
Picking
from
Storage
Hl
y
¥
along
Line
Truck
Shipping
Truck
Shipping
Layout
A
Layout
B
FIGURE
9.4
Layouts
A
and
B
Chapter
9
Warehousing,
Materials
Handling,
and
Packaging
damage.
Thus,
as a
general
rule,
longer
warehouse
handling
movements
are
preferred.
Ideally,
goods,
once
in
motion,
should
be
continuously
moved
until
arrival
at
their
final
destination.
Scale
economies
justify
moving
the
largest
quantities
or
loads
possible.
Instead
of
mov-
ing
individual
cases,
handling
procedures
should
be
designed
to
move
cases
grouped
on
pallets,
slipsheets,
or
containers,
The
overall
objective
of
handling
is
to
eventually
sort
inbound
shipments
into
unique
customer
assortments.
The
five
primary
handling
activities
are
receiving,
putaway
in-storage
handling,
order-picking,
and
shipping.
Receiving
The
majority
of
products
and
materials
arrive
at
warehouses
in
large-quantity
truck
ship-
ments.
The
first
handling
activity
is
unloading.
At
most
warehouses,
unloading
is
per-
formed
using
a
combination
of
lift
trucks,
conveyors,
and
manual
processes.
When
the
freight
is
floor
stacked
in
the
transportation
vehicle,
the
typical
procedure
is
to
group
prod-
ucts
by
SKU
into
unit
loads
using
pallets
or
other
methods
of
conveyance.
In
some
situa-
tions,
products
are
placed
directly
onto
conveyors
to
facilitate
receiving.
When
inbound
product
arrives
unitized
on
pallets
or
in
containers,
lift
trucks
are
primarily
used
to
move
the
product
from
vehicles
to
the receiving
dock.
A
primary
benefit
of
receiving
unitized
loads
is
the
ability
to
rapidly
unload
and
release
inbound
transportation
equipment.
The
receiving
process
is
also
responsible
for
ensuring
the
SKUs
and
quantities
on
the
bill
of
lading
match
the
physical
receipt.
Receiving
teams
are
often
responsible
for
reporting
over,
short,
and
damage
(OS&D)
to
the
administrative
office
so
it
can
be
shared
with
the
ship-
per
for
commercial
reconciliation.
Receiving
product
accurately
and
efficiently
is
the
first
step
toward
running
an
efficient
warehouse
operation.
Product
Putaway
In
the
vast
majority
of
applications,
the
second
handling
function
is
product
putaway.
Product
may
be
placed
in active
storage
locations
or
in
secondary
locations.
Depending
on
how
the
product
is
unitized,
this
could
include
floor-stacking
product,
placing
pallets
of
product
into
racks,
or
placing
individual
packages
into
flow
racks
or
other
storage
systems.
Product
putaway
is
usually
designed
to
be
as
efficient
as
possible,
meaning
the
use
of
fork
trucks
and
or
other
tools
to
help
achieve
speed
of operations
are
common.
In-Storage
Product
Handling
Once
product
is
placed
into
a
storage
location,
it
is
fairly
common
for
that
product
to
be
moved
within the
facility
for
a
variety
of
reasons.
One
reason
could
be
the
replenishment
of
active
storage
locations
with
inventory
originally
placed
in
secondary
location.
This
concept
is
often
referred
to
as
replenishment.
The
amount
of
replenishment
a
warehouse
must
complete
is
usually
a
good
indicator
of
active
storage
bin
sizing
and
strategy.
If
a
warehouse
never
needs
to
replenish,
active
storage
locations
may
be
too
large,
resulting
in
order-picking
labor
inefficiency.
If
replenishment
occurs
frequently,
active
storage
areas
may
be
too
small,
resulting
in
temporary
stockouts,
picking
inefficiency,
and
proliferation
of
replenishment
movements.
It
is
critical
to
strike
a
balance
regarding
how
much
replen-
ishment
activity
takes
place
within a
given
warehouse.
Another
handling
operation
could
be
product
consolidation
to
create
space
efficiency,
For
example,
a
warehouse
may
have
similar
product
with
quantities
on
hand
that
enable
the
products
to
be
combined
in
a
common
area
to
gain
storage
efficiency,
Sometimes
first-in,
first-out
(FIFO)
sequencing
requires
product
to
be
moved
from
secondary
to
primary
storage
by
design
due
to
product
Supply
Chain
Logistics
Management,
Fifth
Edition
233
Supply
Chain
Logistics
Management,
Fifth
Edition
Chapter
9
Warehousing,
Materials
Handling,
and
Packaging
235
TABLE
9.2
©
Equipment
for
handling
and
storage
should
be
as standardized as
possible.
;
Principles
of
Handling
*
When
in
motion,
the
system
should
be
designed
to
provide
maximum
continuous
product
flow.
*
Investment
should
be
in
handling
rather
than
stationary
equipment.
*
Handling
equipment
should
be
utilized
to
the
maximum
extent
possible.
+
In
handling
equipment
selection
the
ratio
of
dead
weight
to
payload
should
be
minimized.
©
Whenever
practical,
gravity
flow
should
be
incorporated
in
system
design
Handling
systems
can
be
classified
as
mechanized, semiautomated,
and
automated.
In
some
cases,
special
handling
considerations
exist.
A
combination
of
labor
and
handling
equipment
is
utilized
in
mechanized
systems
to
facilitate
receiving,
processing,
and/or
shipping.
Generally,
labor
constitutes
a
high
percentage
of
overall
cost in
mechanized
handling.
Automated
systems,
in
contrast,
attempt
to
minimize
labor
as
much
as
possible
by
substituting
equipment
capital
investment.
When
a
combination
of
mechanical
and
automated
systems
is
used
to
handle
material,
the
system
is
referred
to
as
semiautomated.
Mechanized
handling
systems
are
most
common,
but
the
use
of
semiautomated,
and
auto-
mated.
Each
approach
to
handling
is
discussed
in
greater
detail.
Mechanized
Systems
Mechanized
systems
employ
a
wide
range
of
handling
equipment.
The
types
of
equipment
most
commonly
used
are
lift
trucks,
rider
trucks,
towlines,
tractor-trailer
devices,
convey-
ors,
and
carousels,
Lift
Trucks
Lift
trucks,
also
called
forklifts,
can
move
loads
of
master
cartons
both
horizontally
and
vertically
but are
limited
to
handling
unit
loads.
Skids,
boxes, or
containers
may
also
be
transported,
depending
upon
the
nature
of
the
product.
Many
types
of
lift
trucks
are
available.
High-stacking
trucks
are
capable
of
up
to
40
feet
of
vertical
movement.
Palletless
or
clamp
trucks
are
available
for
handling
products
without
pallets
or
slipsheets.
Other
lift
truck
variations
are
available
for
narrow
aisle
and
side-loading
operations.
The
lift
truck
is
not
economical
for
long-distance
horizontal
move-
ment
because
of
the
high
ratio
of
labor
per
unit
of
transfer.
To
overcome
this
limitation
a
great
deal
of
research
has focused
on
“driverless”
fork trucks.
These
new
advances
are
discussed
under
semi-automated
handling
systems.
Conventionallift
trucks
are
utilized
in
shipping
and
receiving
operations
and
to
place
merchandise
in
high
cube
storage.
The
two
most
common
power
sources
for
lift
trucks
are
propane
gas
and
battery.
Towlines
Towlines
consist
of
either
in-floor
or
overhead-mounted
cable
or
drag
devices.
They
are
utilized
to
provide
continuous
power
to
four-wheel
trailers.
The
main
advantage
of
a
tow-
line
is
continuous
movement.
However,
such
handling
devices
have
far
less
flexibility
than
lift
trucks.
The
most common
application
of
towlines
is
for
master
carton
order
selection.
Order
selectors
place
master
cartons
on
four-wheel
trailers
that
are
then
towed
to
the
ship-
ping
dock.
A
number
of
automated
decoupling
devices
are available to
route
trailers
from
the
main
towline
to
specified
shipping
docks.
Tractor
Trailers
Tractor
trailers
consist
of
a
driver-guided
power
unit
towing
one
or
more
four-wheel
trailers.
The
typical
size
of
the
trailers
is
4
x
8
feet.
The
tractor
in
combination
with
trailer,
like
a
towline,
is
used
during
order
selection.
The
main
advantage
of
a
tow
tractor
with
trailers
is
flexibility,
It
is
not
as
economical
as
the
towline
because
each
tow
unit
requires
a
driver.
Chapter
9
Warehousing,
Materials
Handling,
and
Packaging
and
sequencing
into individual
orders
prior
to
shipment.
Most
sortation
devices
can be
pro-
grammed
to
permit
customized
flow
and
decision
logic
to
accommodate
unique
requirements.
Automated
sortation
provides
two
primary
benefits.
The
first
is
a
reduction
in labor.
The
second
is
a
significant
increase
in
speed
and
accuracy
of
order
selection.
High-speed
sortation
systems,
such
as
those
used
by
United
Parcel
Service,
can
sort
and
align
pack-
ages
at
rates
exceeding
one
package
per
second.
Robotics
One
of
the
fastest-growing
methods
of
materials
handling
is
the
use
of
robots.
The
robot
is
a
machine
that
can
be
programmed
to
perform
one
or
more
handling
activities
without
the
intervention
of
an
attendant
or
driver.
Initial
attention to
robotics
resulted
from
attempts
in
the
early
1980s
to
employ
limited-function
stationary
robots
in
automotive
assembly.
The
automotive
experiment
was
less
than
a
total
success.
However,
a
great
deal of
advance-
ment
in
robotics
has
occurred
over
the
past
30
years.
The
primary
use
of
robotics
today
is
materials
handling
in
both
manufacturing
and
warehouse
operating
environments,
Robotics
are
increasingly
being
used
in
many
different
handling
environments.
Ini-
tially,
robotic
applications
were
attractive
as
replacements
for
manual
labor
in
highly
repet-
itive
situations.
For
example
early
robotic
applications
were
in
palletizing,
order
selection,
and
routine
material
handling
situations.
A
primary
benefit
of
robotics
is
their
sustain-
able
performance
accuracy.
Economic
justification
of
robotics
is
typically
driven
by
some
combination
of
five
factors:
(1)
space
limitations;
(2)
faster
order
to
delivery
cycle
time
requirements;
(3)
predictable
and
substantial
throughput
volume;
(4)
high
labor
costs;
and/
or
(5)
restrictive
work
environments
such
as
frozen
food
warehouse
order
selection.
Recent
years
have
witnessed
significant
advancements
in
the
development
of
flexibility
in
robotic
applications.
Applications
gaining
popularity
are
inbound
merchandise
put-a-way
and
order
selection
in
frozen
food
distribution
centers.
In both
examples,
the
use
of
robots
reduces
exposure
ofworkers
to
the
low
temperature
maintained
in
the
working
environment.
The
long-term
potential
for
the
application
of
robots
throughout
the
supply
chain
is
promising.
Almost
any
handling
task
that involves
repetitive
movements
is
a
candidate
for
either
automation
or
robotic
processing.
When
the
activity
is
stationary,
such
as
palletizing
or
de-palletizing
cartons
of
merchandize,
the
likely
solution
will
be
some
form
of
automa-
tion.
When
the
work
task
involves
horizontal
movement
in
multiple
directions,
the
applica-
tion
is
likely
to
involve
some
form
of
robotics.
In
the
longer
term,
it
is
likely
that
limited
forms
of
driverless
vehicles
will
increase
in
utili-
zation.
Pilotless
airborne
drones
are
increasingly
being
used
in
military
operations
as
attack
weapons
and
for
surveillance.
Semi-trucks
have
successfully
been
driven
without
drivers
in
the
truck
both within yard
operations
and
for
limited
distances
on
public
roads.
While
this
form
of
robotics
requires
combined
human
and
technology
interaction,
the
range
of poten-
tial
applications
seems
unlimited.
Of
particular
interest
to
future
supply
chain
operations
is
the
growing
combination
of
physicians
and
robots
in
medical
surgery.
In
selected surgical
procedures,
experienced
physicians
provide
guidance
and
make
critical
decisions
during
the
operation.
The
robot, a
precise
machine,
is
instructed
by
the
physician
to
follow
a
specific
routine
and
complete
in
sequence
precise
surgical
procedures.
Of
course medical
expertise
is
available
in
the
operating
facility
to
assist
and
complete
the
pre-
and
post-surgical
protocols.
An
important
point
for
future
supply
chain
logistics
applications
is
the
potential
generated
by
the
fact
that
the
physician
and
the
robot
do
not
have
to
be
at
the
same
physical
location
to
complete a
successful
medical
procedure.
To
capture
this
extended
deployment,
wherein
expert
knowledge
is
combined
with
robotic
capability,
we
have
adopted
the
term
probotics,
Significant
potential
exists
for
increased use
of
robotics
in
warehousing
and
material
handlings.
Of
particular
interest
are
the
applications
that
are
extending
the
potential
of
probotics
beyond
the
warehouse
and
factory
walls.
237
Chapter9
Warehousing,
Materials
Handling,
and
Packaging
products
to
be
placed
in
shipment
containers
prior
to transfer to
the
shipment
staging
area.
Product
is,
ideally,
selected
and
loaded
sequentially
so
it
can
be
unloaded
in
the
sequence
desired
by
the
customer.
Substantial
advancements
have
been
made
in
automated
selection
of
case
goods.
The
handling
of
fast-moving
products
in
master
cartons,
typical
of
cross-docking,
can
be
fully
automated
from
the
point
of
merchandise
receipt
to
placement
in
over-the-road
trailers.
Such
systems use
an
integrated
network
of
power
and
gravity
conveyors
linking
power-
motivated
live
storage.
The
entire
process
is
computer
controlled
and
coupled
with
the
mer-
chandise
order
and
WMS.
Upon
arrival,
merchandise
is
automatically
routed
to
the
live
storage
position
and
inventory
records
are
updated.
When
orders
are
received,
merchan-
dise
is
precubed
to
package
or
vehicle
size
and
scheduled
for
selection.
At
the
appropriate
time,
merchandise
is
selected
in
loading
sequence
and
automatically
moved
by
conveyor
to
the
loading
dock.
In
some
situations,
the
first
and
only
manual
handling
of
the
merchan-
dise
within
the
warehouse
occurs
when
it
is
stacked
into
the
outbound
transport
vehicle.
Automated
Storage/Retrieval
An
automated
unitload
handling
system,
or
automated
storage
and
retrieval
system
(AS/RS),
using
high-rise
storage
is
an
increasingly
popular
form
of
automation.
Figure
9.5
illustrates
the
concept
of
a
high-rise
AS/RS.
AS/RSs
are
particularly
appropri-
ate for
items
such
as
heavy
boxes
or
those
products
in
controlled
environments
such
as
bakeries
or
frozen
food.
The
high-rise
concept
of
handling
is
typically
automated
from
receiving
to
shipping.
The
four
primary
AS/RS
components
include
storage
racks,
storage
and
retrieval
equipment,
input/output
system,
and
control
system.
The name
high-rise
derives
from
the
physical
appearance
of
the
storage
rack.
The
rack
is
structured-steel
vertical
storage,
which
can
be
as
high
as
120
feet.
The
typical
stacking
height
of
palletized
cartons
in a
mechanized
handling
system
is
20
feet,
so
the
potential
Unit
load
storage
rack
Storage
and
retrieval
aisle
Supply
Chain
Logistics
Management,
Fifth
Edition
FIGURE
9.5
ASIRS
High-Rise
Warehouse
239
Supply
Chain
Logistics
Management,
Fifth
Edition
Chapter
9
Warehousing,
Materials
Handling,
and
Packaging
241
and
handling
processes
most
appropriate
to
support
this
activity.
In
many
cases,
these
e-tailers
are
outsourcing
fulfillment
to
integrated
service
providers
(ISPs).
In
any
case,
the
e-tailing
environment
will
continue
to
place
increasing
demands
on
a
more
timely,
respon-
sive,
and
integrated
warehouse
and
materials
handling
operation.
Returns
Processing
For
a
variety
of
reasons,
merchandise
may
be
recalled
by
or
returned
to
a
manufacturer.
This
is
particularly
true
in
an
e-tailing
environment
where
up
to
30
percent
of
orders are
returned.
Normally
such
reverse
logistics
is
not
of
sufficient
quantity or
regularity
to jus-
tify
unitized
movement,
so
the
only
convenient
method
for
processing
reverse
flows
of
merchandise
is
manual
handling.
To
the
degree
practical,
materials
handling
design
should
consider
the
cost
and
service
impact
of
reverse
logistics.
Such
flows
often
involve
pallets,
cartons,
and
packaging
materials
in
addition
to
damaged,
dated,
or
excess
merchandise.
Many
firms
are
choosing
to
have
returns
processed
by an
integrated
service
provider
to
separate
flows
and
reduce
the
chance
for
error
or
contamination.
Storage
In
planning
warehouse
layout,
it
is
essential
that
products
be
assigned
specific
loca-
tions,
called
slots,
on
the
basis
of
individual
characteristics.
The
most
important
product
variables
to
consider
in
a
slotting
plan
are
product
velocity,
weight,
and
special
storage
requirements.
Product
velocity
is
the
major
factor
driving
warehouse
layout.
High-volume
product
should
be
positioned
in
the
warehouse
to
minimize
movement
distance.
For
example,
high-velocity
products
should
be
positioned
near
doors,
primary
aisles,
and
at
lower
levels
in
storage
racks,
Such
positioning
minimizes
warehouse
handling
and
reduces
the
need
for
frequent
lifting.
Conversely,
products
with
low
volume
are
typically
assigned
locations
more
distant from
primary
aisles
or
higher
up
in
storage
racks.
Figure
9.6
illustrates
a
stor-
age
plan
based
on
product
movement
velocity.
Receiving
docks
FIGURE
9.6
4,
i 1
——
Storage
Plan
Based
——
—S
_——
==
on
Product
Movement
Storage
space
for
Velocity
high-volume
product
Storagespacefar
jas
sees
seme
ec
cocses
Storage
space
for
low-volume
product
|
|__
low-volume
product
i
Staging
and
(rosette
ree
Ed
Shipping
docks
Chapter
9
Warehousing,
Materials
Handling,
and
Packaging
case,
the
discount
or
savings
have
to
be
traded
off
against
extended
storage
and
inventory
carrying
cost.
Commodities
such
as
grains,
oil,
and
lumber
are
often
purchased
and
stored
for
speculative
reasons.
The
warehouse
may
also
be
usedto
realize
special
discounts.
Early
purchase
or
forward-
buy
discounts
may
justify
extended
storage.
The
procurement
manager
may
be
able
to
real-
ize
a
substantial
price
reduction
during
a
specific
time
of
the
year.
Under
such
conditions
the
warehouse
is
expected
to
hold
inventory
in
excess
of
active
storage.
Manufacturers
of
fertilizer,
toys,
and
lawn
furniture
often
attempt
to
shift
the
warehousing
burden
to
cus-
tomers
by
offering
off-season
warehouse
storage
allowances.
Secondary
Warehouse
Operations
Accuracy
and
Audits
One
secondary,
but
critically
important,
warehouse
function
is
maintaining
an
accurate
account
of
product
on
hand
within
the
warehouse.
Inventory
accuracy
is
a
primary
con-
cern
of
firms
financial
organizations
because
the
inventory
in
the warehouse
is,
in
most
cases,
considered
an
asset
on
the
firm's
balance
sheet.
Inventory
accuracy
is
typically
main-
tained
by an
annual
physical
inventory
count
in
which
the
warehouse
operation
is
closed
while
all
on-hand
products
are
physical
counted
and
verified
against
system
quantities.
Physical
inventories
are
less
than
desirable
for
two
main
reasons:
(1)
The
warehouse
must
be
closed
to
facilitate
counting
in
an
environment
with
no
active
transactions,
resulting
in
the
warehouse
being
unable
to
conduct primary
functions
such
as
receiving
and
shipping,
and
(2)
the
audits
are
costly
because
they
require
significant
physical
labor
to
count
all
on-
hand
inventory.
One
tool
firms
use
to
support
ongoing
accuracy
and
help
avoid
complete
physical
inventories
is
referred
to
as
cycle
counting.
Cycle
counting
is
the
selective
audit
of
a
certain
number
of
SKUs
or
bin
locations
on
a
predetermined
schedule.
Selection
of
individual
items
to
be
counted
and
verified
can
be
based
on
the
dollar
value
of
the
item,
storage
locations,
or
frequency
of
movement.
By
completing
many,
small
cycle
counts,
a
warehouse
can
demonstrate
inventory
control
without
pervasively
affecting
day-to-day
operations.
The
outcome
of
both
a
physical
inventory
and
a
cycle
count
is
the
reconcilia-
tion
between
physical
on-hand
product
compared
to
the
book
or
warehouse
management
system
quantities.
Audits
related
to
inventory
accuracy
are
only
one
type
of
audit
that
is
typically
used
to
maintain
and
improve
warehouse
operating
efficiency.
Audits
are
also
common
to
main-
tain
safety,
assure
compliance
to
security
regulations,
drive
procedural
improvement,
and
facilitate
work
changes.
Security
In
a
broad
sense,
security
in
a
warehouse
involves
protection
against
merchandise
pilfer-
age,
deterioration,
and
any
form
of
operational
disruption.
Each
form
of
security
requires
management
attention.
Pilferage
In
warehouse
operations
it
is
necessary
to
protect
against
theft
by
employees
and
thieves.
Typical
security
procedures
should
be
strictly
enforced
at
each
warehouse.
Security
begins
at
the
exterior
fence.
As
standard
procedure,
only
authorized
personnel
should
be
permit-
ted
into
the
facility
and on
surrounding
grounds.
Entry
to
the
warehouse
yard
should
be
Supply
Chain
Logistics
Management,
Fifth
Edition
243
Chapter
9
Warehousing,
Materials
Handling,
and
Packaging
result
in
product seepage
onto
the
floor.
Proper
cleaning
procedures
can
reduce
the
acci-
dent
risk
of
such
hazards.
Environmental
safety
has
become
a
major
concern
of
govern-
ment
agencies
such
as
OSHA
and
cannot
be
neglected
by
management.
A
preventative
maintenance
program
is
necessary
for
handling
equipment.
Unlike
pro-
duction
machines,
movement
equipment
is
not
stationary,
so
it
is
more
difficult
to
properly
maintain.
A
preventative
maintenance
program
scheduling
periodic
checks
of
all
handling
equipment
should
be
applied
in
every
warehouse.
Additionally
preventative
maintenance
can
also
be
applicable
to
the
physical
warehouse
building
itself.
Common
building
preventative
maintenance
programs
include
the
facil-
ity
HVAC
and
fire
suppression
systems,
dock
leveling
equipment
used
to
enter
and
exit
transportation
vehicles,
or
the
restriping
of
the
warehouse
floor
to
maintain
traffic
pattern
efficiency.
Other
examples
include
replacement
of
light
bulbs
both
inside
and
outside
the
warehouse
or
the
resurfacing
of
the
exterior
warehouse
truck
yard
to
ensure
transportation
equipment
is
not
damaged
by
potholes.
Environmental
Concerns
and
Regulatory
Environment
There
is
increased
concern
regarding
environmental
impact
of
packaging
and
handling,
In
particular,
attention
has
been
directed
to
the
impact
of
handling
equipment
such
as
lift
trucks,
Pollution
of
gas
powered
lift
trucks
is
similar to that
of
automobile
engines.
There
is
also
increasing
interest
regarding
the
handling
and
disposal
of
hazardous
materials
used
or
stored
in
warehouse
operations.
Firms
have
to
ensure
that
such
materials
are
disposed
of
properly
to
avoid
pollution
liability.
The
distribution
warehouse
is
one
of
the
most
labor-intensive
operations
for
most
firms.
It
is
also
one
of
the
most
dangerous
as
numerous
injuries
occur
annually.
To
increase
safe
practices
OSHA
extended
its
regulatory
influence
over
warehouse
operations
and
technol-
ogy.
In
March
1999,
OSHA
established
the
Powered
Industrial
Truck
Operator
Training
(PITOT)
regulation
requiring
the
training
and
reevaluation
of
all
lift
truck
drivers.
Drivers
failing
evaluation
and
those
involved
in
accidents
must
undergo
refresher
training.
OSHA
is
concerned
with
all
aspects
of
safety
within
supply
chain
logistics
facilities
and
associated
shipping
and
receiving
docks.
Included
in
the
ongoing
safety
program
are
regu-
lar
inspections
of
facilities
to
ensure
existing
standards
are
being
adhered
to
during
daily
operations.
Table
9.3
is
reproduced
from
OSHA's
Handbook,
which
discusses
warehouse
safety.
The
table
lists
the
10
most
frequently
cited
warehouse
safety
violations.'
‘
Aadapted
from
OSHA:
Working
Safety
Series:
Warehousing,
United
States
Government,
OSHA
3220-10N,
2004,
p.
1.
Warehouse
operations
can
present
a
wide
variety
of
potential
hazards
for
the
worker.
For
warehousing
establishments,
the
10
OSHA
standards
most
frequently
included
in
the
agency's
citations
were:
1.
Forklifts
2.
Hazard
communication
3.
Electrical,
wiring
methods
4,
Electrical,
system
design
5,
Guarding
floor
&
wall
openings
and
holes
6.
Exits
7.
Mechanical
power
transmission
8.
Respiratory
protection
9.
Lockout/tagout
10.
Portable
fire
extinguishers
Supply
Chain
Logistics
Management,
Fifth
Edition
TABLE
9.3
Warehouse
Hazards
245
Chapter
9
Warehousing,
Materials
Handling,
and
Packaging
Warehouse
Management
Systems
Basic
Functionality
Advanced
Functionality
Receiving
‘Yard
management
Put-away
Labor
management
Cycle-count
Warehouse
optimization
Pick
Value-added
services
Task
management
Planned
cross-dock
Quality
analysis
Returns
management
Replenishment
Pack
Opportunistic
cross-dock
Inventory
control
Work
order
management
Ship
Interface
systems
(middleware)
[__ERP—TMS—Material
handlingSupply
chain
planning
systems
—_|
transportation
vehicles.
Labor
management
refers
to
maximizing
the use
of
warehouse
labor.
Historically,
warehouse
labor
has
been
quite
specialized,
allowing
for
relatively
easy
planning.
Warehouse
optimization
refers
to selection
of
the
best
location
within
the
ware-
house
for
the
storage
and
retrieval
of product
to
minimize
time
and movement.
Value-
added
services
refer
to
the
coordination
of
warehouse
activities
to
customize
product,
such
as
packaging,
labeling,
kitting,
and
setting
up
displays.
Planned
cross-docking
and
merging
is
the
integration
of
two
or
more
parts
of
a
cus-
tomer
order
that
have
been
supplied
from
different
source without
maintaining
inventory,
final
execution
function
is
the
capability to
manage
reverse
logistics
activities
such
as
returns,
repair,
and
recycling.
Both
customers
and
environmental
interests
are
increasing
their
demands
that
supply chains
can
accommodate
reverse
logistics.
Table
9.4
summa-
rizes
WMS
functionality
and
decision
support
benefits.
Yard
Management
Systems
An
important
part
of
warehouse-related
information
technology
is
the
yard
manage-
ment
system
(YMS).
The YMS
in
essence
couples
the
warehouse
with
inbound and
outbound
transportation
equipment.
This
coordination
takes
the
form
of arranging
dock
appointments
for
receiving
ordered
merchandise
and
transportation
equipment
for
ship-
ping
outbound.
From
a
performance
perspective,
the
YMS
is
the
scheduler.
For
high-
level
transportation
and
warehousing
efficiency,
it
is
essential to
appropriately
sequence
inbound
and
outbound
warehouseactivity.
It
is
also
important
to
maintain
an
accurate
accountability
of
what
merchandise
and
transportation
equipment
is
in
the
warehouse
or
factory
yard.
Many
stories
exist
to
illustrate
the
dilemma
of
expediting
an
inbound
product
shipment
due
from
a
supplier
only
to
have
it
arrive
on
time
as
scheduled
and
be
dispatched
to
the
warehouse
yard
due
to
no
dock
availability.
An
appropriate
way
to
view
the
YMS
is
as
the
software
that
links
and
coordinates
transportation
(TMS)
with
the
warehouse
(WMS).
Supply Chain
Logistics
Management,
Fifth
Edition
247
FIGURE
9.7
Warehouse
Management
System
Functionality
Chapter9
Warehousing,
Materials
Handling,
and
Packaging
The
use
of
RFID
capabilities
creates
the
opportunity
for
two-way
communication
between
specific
products
and
lift
truck
operators.
Because
the
RFID-equipped
product
can
respond
to
an
inquiry
from
the
WMS
or
the
operator,
the
potential
exists
to
identify
the
exact
location
in
the
warehouse.
Such
positive
identification
serves
to
facilitate
information-
directed
handling.
Information-directed
handling
offers
great
potential
because
selected
benefits
of
auto-
mation
can
be
achieved without
substantial
capital
investment.
Information-directed
sys-
tems
can
also
substantially
increase
productivity
by
tracking
lift
truck
performance.
Substantial
research
is
being
conducted
to
explore
new
concepts of
warehouse
design
and
layout
to
fully
exploit
the
potential
of
information-directed
material
handling.
Light
Directed
A
common
light
directed
technology
is
pick-to-light.
In
pick-to-light,
applications
is
a
car-
ousel
system
variation
that
is
becoming
increasingly
common.
In
this
system,
order
selec-
tors
pick
designated items
directly
into
cartons
or
onto conveyors
from
lighted
carousel
locations
or
storage
bins.
A
series
of
lights
or a
light
tree
in
front
of
each
pick
location
indicates
the
number
of
items
to
pick
from
each
location.
A
variation
of
the
pick-to-light
system
is
put-to-light,
where
order
selectors
place
product
in
lighted
containers.
Each
con-
tainer
or
tote
is
assigned
to a specific
order
or
customer,
so
the
light
is
telling
which
cus-
tomers
are
to
receive
a specific
product.
It’s
clear
that
effective
warehouse
operations
require
a
combination
of
state
of
the
art
systems,
including
a
WMS,
TMS,
and
other
information
directed
systems
to
handle
today’s
complexity
and
achieve
efficiency
in
the
21st-century
logistics
systems.
final
section
in
this
chapter
looks
at
packaging
and
the
integration
of
packaging
with
warehouse
operations
and
materials
handling
equipment,
Packaging
Perspectives?
Packaging
is
typically
viewed
as
being
either
consumer,
focused
primarily
on
marketing,
or
industrial,
focused
on
logistics.
The
primary
concern
for
logistics
operations
is
industrial
package
design.
Individual
products
or
parts
are typically
grouped
into cartons,
bags,
bins,
or
barrels for
damage
protection
and
handling
efficiency.
Containers
used
to
group
indi-
vidual
products
are
called
master
cartons.
When
master
cartons
are
grouped
into
larger
units
for
handling,
the
combination
is
referred to as
containerization
or
unitization.
Master
cartons
and
unit
loads
are
the
basic
units
handled
during
logistical
operations,
The
weight,
cube,
and
damage
potential
of
the
master
carton
determines
transportation
and
handling
requirements.
When
multiple
master
cartons
are
grouped
together
for
han-
dling
the
composite
is
referred
to
as
a
unit
load.
If
packages
and
unit
loads
are
not
designed
for
efficient
logistical
processing,
overall
system
performance
suffers.
Packaging
and
unit
loads
impact
all
supply
chain
movement
and
storage
costs.
Retail
sale
quantity
or
presentation
should
not
be
the
prime
determinant
of
master
car-
ton
size.
For
example,
beer,
often
sold
at
retail
in
units
of
6,
is
normally packed
in
master
cartons
containing
24
units.
The
master
carton
should
be
large
enough
to
provide
econo-
mies
of
scale
but
light
enough
to
facilitate
handling
by an
individual
without
mechanical
assistance.
A
prime
objective
in
logistics
is
to
design
operations
to
handle
a
limited
assort-
ment
of
standardized
master
cartons.
*The
authors
express
their
appreciation
to
Professor
Diana
Twede
from
the
Michigan
State University
Schoo!
of
Packaging
for
assistance
provided
in
preparing
this
section.
Supply
Chain
Logistics
Management,
Fifth
Edition
249
Chapter
9
Warehousing,
Materials
Handling,
and
Packaging
The
determination
of
final
package
design
requires
a great
deal
of
testing
to
assure
that
both
marketing
and
logistics
concerns
are
satisfied,
While
the
marketing
aspects
are
generally
the
focus
of
consumer
research,
logistics
packaging
research
is
determined from
laboratory or
experimental
testing.
Laboratory
analysis
offers
a
reliable
way
to
evaluate
package
design
as
a
result
of
advancements
in
testing
equipment
and
measurement
tech-
niques.
For
example,
testing
equipment
is
available
to
measure
shock
severity
and
char-
acteristics
while
a
package
is
in
transit.
To
a
large
degree,
care
in
design
has
been
further
encouraged
by
increased
federal
regulation
regarding
hazardous
materials.
The
four
most
common
causes
of
product
damage
in
a
logistical
system
are
vibration,
impact,
puncture,
and
compression. Combinations
of
potential
damage
can
be
experienced
whenever
a
package
is
being
transported
or
handled.
Test
shipment
monitoring
is
expen-
sive
and
difficult
to
conduct
on
a
scientific
basis.
To
obtain
increased
accuracy,
computer-
ized
environmental
simulations
can
be
used
to
replicate
typical
conditions
that a
package
will
experience
in
the
logistical
system.
Laboratory
test
equipment
is
available to
evaluate
the
impact
of
shock,
vibration,
and
compression
upon
the
interaction
of
product
fragility,
packaging
materials,
and
design.
Packaging
for
Handling
Efficiency
Packaging
decisions
have
a
major
impact
on
logistical
productivity
and
efficiency.
All
logistical
operations
are
affected
by
packaging—from
truck
loading
and
warehouse
picking
productivity
to
transportation
vehicle
and
storage
cube
utilization.
Handling
efficiency in
all
of
these
situations
is
significantly
influenced
by
package
design,
unitization,
and
com-
munication
characteristics.
Package
Design
Product
packaging
in
standard
configurations
and
order
quantities
facilitates
logistical
efficiency.
For
example,
cube
utilization
can
be
improved
through
reduced
package
size
by
concentrating
products
such
as
orange
juice or
fabric
softener,
by
eliminating
air
inside
packages,
and
by
shipping
items
unassembled,
nested,
and
with
minimal
dunnage.
In
most
cases,
dunnage
materials,
like
polystyrene
foam
peanuts,
can
be
minimized
simply
by
reducing
box
size.
IKEA,
the
Swedish
retailer
of
unassembled
furniture,
emphasizes
cube
minimization
to
the
point
that
it
ships
pillows
vacuum-packed,
IKEA
uses
a
cube
mini-
mization
packaging
strategy
to
successfully
compete
in
the
United
States
even
though
the
company
ships
furniture
from
Sweden.
Cube
minimization
is
most
important
for
lightweight
products
such
as
assembled
lawn
furniture
that
cubes
out
a
transport
vehicle
before
weight
limits
are
reached.
On
the
other
hand,
heavy
products
like
steel
ball
bearings
or
liquid
in
glass
bottles
typically
weigh
out
transport
vehicles
before
cube
capacity
is
filled.
When
a
vehicle
or
container
weighs
out,
the
firm ends
up
shipping
empty
cube
space
that
can’t
be
filled
with
product.
Total
weight
can sometimes
be
reduced
by
product
or
package
changes.
For
example,
substituting
plas-
tic
bottles
for
glass
significantly
increases
the
number
of
bottles
that
can
be
loaded
in a
trailer.
The
decision
by
Gerber
to
use
plastic
jars
for
baby
food
was
partially
designed
to
reduce
transportation
expenses.
Cube
and
weight
minimization
represent
a special
challenge
e-commerce
operations.
These
operations
tend
to
use
standardized
packaging
for
both
purchasing
and
operating
efficiencies.
The
result
is
often
oversized
packages
that
require
excessive
dunnage
and
increased
shipping
cost.
The
nature
of
the
products
and
the
breadth
of
e-commerce
prod-
uct
lines
often
require
multiple
packages
to
be
combined
in
single
order.
This
is
of
great
Supply
Chain
Logistics
Management,
Fifth
Edition
251
Supply
Chain
Logi
Chapter9
Warehousing,
Materials
Handling,
and
Packaging
The
decision
to invest
in
a
returnable
package
system
is
based
on
of
the
number
of
shipment
cycles
and
return
transportation
costs
versus
the
purchase
and
disposal
cost
of
expendable
containers.
Benefits
of
improved
handling
and
reduced
damage
should
be
taken
into
account,
as well
as
the
future
costs
of
sorting,
tracking,
and
cleaning
the
reus-
able
devices,
Flexible
Devices
As
the
name
implies,
flexible
devices
do
not
protect
a product by
complete
enclosure.
The
most
common
type
of
nonrigid
unitization
is
stacked
master
cartons
on
either
pallets
or
Slipsheets.
Pallets
are
most
commonly
constructed
out
of
wood.
However, an
increas-
ing
number
of
plastic
and
steel
pallets
are
being
used
in
specific
handling
situations.
A
hardwood
pallet
is
illustrated
in
Figure
9.9.
A
slipsheet,
which
is
similar
to
a
pallet
in
size
and
purpose,
is
a
flat
stocking
surface
generally
made
of
cardboard
or
plastic.
Because
slipsheets
lie
flat
on
the
floor,
special
lift
trucks
are
required
to
handle
slipsheet
unit
loads.
The
primary
advantage
of
slipsheets
in
comparison
to
pallets
is
cost
and
weight.
Slipsheets
are
less
costly
than
pallets
and
are
insignificant
from
a
weight
and
cube
perspective.
Most
industry
associations
recommend
that
a
standardized
pallet
or
slipsheet
size
be
used
as
a unit
load
platform.
The
Grocery
Manufacturers
of
America
have
adopted
the
40
x
48-inch
pallet
with
four-way
entry
and
similar
size
slipsheets
for
food
distribution.
The
beverage
industry,
on
the
other
hand, has
standardized
on
32
x
36-inch
pallets.
Throughout
industry,
the
sizes
most
frequently
used
are
40
x
48,
32
x
40,
and
32
x
36,
It
is
common
practice
to
first
identify
the
dimension
of
most
frequent
entry
by
handling
equipment.
Generally,
the
larger
a
platform,
the
more
efficient
the
associated
handling.
For
instance,
the
40
x
48-inch
pallet
provides
768
more
square inches
per
stacking
tier
than
the
32
x
36-inch
size.
Assuming
that
master
cartons
can
be
stacked
as
high
as
10
tiers,
the
total
added
unitization
space
of
the
40
x
48-inch
pallet
is
7680
square
inches.
This
is
60
percent
larger
than
the
32
x
36-inch
size.
The
final
determination
of
size
should
be
based
upon
load,
compatibility
with
the
handling
and
transport
equipment
used
throughout
the
logis-
tical
system,
and
standardized
industry
practice.
With
modern
handling
equipment,
few
restrictions
are
encountered
in
weight
limitations.
While
pallets
themselves
are
not
flex-
ible,
the
unit
loads
they
contain
are
very
flexible.
While
a
variety
of
different
approaches
can
be
used
to
tier
master
cartons
on
slipsheets
and
pallets,
the
four
most
common
are
block,
brick,
row,
and
pinwheel.
The
block
method.
is
used with
cartons
of equal
width
and
length.
With
differential
widths
and
lengths,
the
ics
Management,
Fifth
Edition
FIGURE
9.9
Hardwood
Four-Way
Entry
Pallet
253
Chapter
9
Warehousing,
Materials
Handling,
and
Packaging
Summary
Sy
:
Warehousing,
materials
handling,
and
packaging
combine
to
incorporate
many
different
aspects
of
logistics
operations.
Collectively,
they
form an
integrated
functional
area
that
affects
all
areas
of
the
supply
chain.
While
the
role
of
the
warehouse
has
traditionally
been
to
stock
inventory,
contemporary
warehousing
involves
a
broader
value
proposition
in
terms
of
the
service
and
economic
benefits.
Service
benefits
include
spot-stocking,
full-line
stocking,
and
value-added
services.
Economic
benefits
include
consolidation
and
break-bulk
sorting,
seasonal
storage,
and
reverse
logistics.
The
perspective
of
warehousing
is
changing
from
a
traditional
storage
mission
to
one
characterized
by
customization,
velocity,
and
movement.
Warehouses
are
usually
classified
on
the
basis
of
ownership.
A
private
warehouse
is
operated
by
the
enterprise
that
also
owns
the
merchandise
in
the
facility.
A
public
ware-
house
is
operated
independently
and
offers
various
for-hire
value-added
services.
A
contract
warehouse
is
a
long-term
business
arrangement
that
provides
tailored
services
for
a
limited
number
of
customers.
An
integrated
warehousing
strategy
often
incorporates
a
combina-
tion
of
warehouse
ownership
options.
There
are
numerous
managerial
decisions
in
planning
and
initiating
warehouse
operations,
including
site
selection,
design,
product-mix
analysis,
expansion,
handling,
layout,
and
sizing.
Distribution
centers
and
warehouses
are
designed
to
achieve
the
primary
activities
of
inventory
handling
and
storage.
Handling
includes
receiving,
putaway,
in-storage
handling,
order-picking,
and
shipping.
High-performance
handling
is
a key
to
warehouse
productivity
supported
by
a
series
of
unique
handling
arrangements,
including
mechanized,
semiauto-
mated,
and automated
systems.
In
certain
circumstances,
special
handling
considerations
must
be
accounted
for.
Active
storage
facilitates
cross-docking, consolidation,
break-bulk,
and
postponement.
Extended
storage
facilitates
balancing
supply
and
demand
speculation.
It's
very
common
for
warehouses
to
have
some
combination
of
active
and
extended
stor-
age
to
enable the
support
of
unique
business
requirements.
Secondary
warehouse
functions
including
accuracy
and
audits,
facility
security,
and
safety
and
maintenance,
compliment
primary
warehouse
functions
to
establish
the
entire
warehouse
ecosystem.
Modern
distribution
centers
and
warehouses
commonly
utilize
advanced
systems,
including
warehouse
management,
yard
management
and
other information-directed
sys-
tems
to
support
operational
complexity
and
drive
efficiency.
The
importance
of
these
sys-
tems
will
only
continue
to
grow
as
warehouses
are
required
to
continue
demonstrating
more
efficiency.
Packaging
has
a
significant
impact
on
the
cost
and
productivity
of
logistics.
Packaging
design,
the
use of
master
cartons,
and
containerization
or
unitization
are
critical
consider-
ations.
Flexible
and
rigid
devices
provide
unique
benefits
that
must
be
effectively
applied
to
a
given
application.
Finally,
packaging
fulfills
a
key
need
of
communication
or
information
transfer.
Study
Questions
oY
1.
Discuss
and
illustrate
the
economic
justification
for
establishing
a
warehouse,
2.
Under
what
conditions
could
it
make
sense
to
combine
private
and
public
warehouses
in a
logistical
system?
3.
Discuss
and
illustrate
the
role
of
warehouses
in
reverse
logistics.
Supply Chain
Logistics
Management,
Fifth
Edition
255
Chapter
Six
Strategic
Alliances
244
DESIGNING
AND
MANAGING
THE
SUPPLY
CHAIN
according
to
Richard
Berner,
chief
U.S.
economist
at
Morgan
Stanley
Dean
Witter.
“Supply-chain
manage-
ment
has
had
a
major
impact,”
says
Mr.
Berner,
who
compiled
his
analysis
from
government
data.
RETURN
TO
UNISEX
There
is
also
a
potential
downside
for
consumers:
Fewer
choices
in
brands
and
types
of
packages.
For
example,
two
years
ago,
Kimberly-Clark
stopped
making
separate
diapers
for
boys
and
girls
and
reverted
to
unisex-only.
Less
variety
makes
for
easier
inventory-tracking
in
its
factories
and
trucks,
the
Dallas-based
company
says.
To
a
great
extent,
better
cooperation
between
retailers
and
suppliers
has
been
made
possible
by
improved
technology—such
as the
computer
link
Kimberly-Clark
uses.
It’s
also
a
consequence
ofthe
greater
strength
of
major
retailers
as
they
consoli-
date
and
expand
globally.
Many
economists
say
that
closer
retailer-supplier
coordination
on
the
supply
chain
is
the
model
of
the
future
and
will
ulti-
mately
determine
which
companies
succeed
in
the
new
millennium.
“A
shopper
buys
a
roll
of
Bounty
paper
towel,
and
that
would
trigger
someone
cutting
a
tree
in
Georgia,”
says
Steve
David,
who
heads
supply-chain
work
for
Procter
&
Gamble
Co.,
the
Cincinnati
con-
sumer-products
giant.
“That’s
the
holy
grail.”
These
days,
P&G
stations
about
250
people
in
Fayetteville,
Ark.,
minutes
from
Wal-Mart’s
head-
quarters
in
Bentonville,
solely
to
promote
its
prod-
ucts
to
the
discount
chain
and
ensure
they
move
as
quickly
as
possible
to
store
shelves.
The
two
giants
share
some
inventory
data.
The
price
of
inefficiencies
on
the
supply
chain
is
high.
Revlon
Inc. this
year
slowed
its
product
ship-
ments
because
store
shelves
were
backed
up
with
older
inventory.
Kmart
Corp.’s
new
chief
executive,
Charles
Conaway,
has
publicly
blamed
the
retailer’s
sagging
profits
in
part
on
a
weak
supply
chain
infras-
tructure.
Last
month,
he
said
he
expects
to
spend
$1.4
billion
over
the
next
two
years
to
update
Kmart’s
technology,
including
systems
for
coordi-
nating
with
suppliers.
And
earlier
this
year,
Estee
Lauder
Cos.
hired
away
Compaq
Computer
Corp.’s
executive
in
charge
of supply
chain
to
bolster
that
operation
at
the
cosmetics
concern.
By
several
accounts,
the
close
collaboration
between
Costco
and
Kimberly-Clark
serves
as a
Designing
and
Managing
the
Supply
Chain,
Third
Edition
model
for
other
merchandisers,
and
also
helps
explain
strong recent
sales
gains
by
the
two
companies.
In
the
past
two
years,
Kimberly-Clark
gradually
expanded
the
program
and
now
manages
inventory
for
some
44
retailers
of
its
products,
The
consumer-products
com-
pany
says
it
wrung
$200
million
in
costs
from
its
sup-
ply
chain
during
that
period,
and
it
vows
to
squeeze
out
another
$75
million
this
year.
“This
is
what
the
information
age
has
brought
to
this
industry,”
says
Wayne
Sanders,
chairman
and
chief
executive
officer
of
Kimberly-Clark.
“It
gives
us
a
competitive
advantage.”
In
fact,
Kimberly-Clark
says
the
cost
savings
it
achieves
on
its
supply
chain
are
one
reason
its
Huggies—and
not
rival
P&G’s
Pampers—
are
sold
at
Costco
stores
in
most
areas
of
the
country.
“Tf
a
company
finds
a
way
to
lower
its
costs,
it
gets
those
deals,”
says
Richard
Dicerchio,
Costco’s
chief
operating
officer.
A
spokeswoman
for
P&G
says
its
supply
chain
is
very
efficient,
and
Costco
carries
many
of
its
other
products.
To
oversee
ordering
for
the
retailers
whose
inven-
tory
it
manages,
Kimberly-Clark
employs
a
staff
of
24
people,
including
Mr.
Fafnis.
A
Kimberly-
Clark
spokeswoman
says
the
benefits
of
the
program
“more
than
offset”
additional
labor
costs.
Last
year,
Kimberly-Clark
posted
a
51
percent
rise
in
net
income
to
$1.67
billion
on
$13
billion
in
sales,
cap-
ping
three
years
of
improving
results.
For
Costco,
the
benefits
of
such
close
cooperation
with
a
major
supplier
are
equally
clear:
Costco
saves
money
not
only
on
staffing
in
its
inventory
department,
but
also
on
storage.
Before
Kimberly-Clark
began
managing
Costco’s
inventory,
in late
1997,
the
retailer
would
keep
an
average
of
a
month’s
supply
of
Kimberly-Clark
products
in
its
warehouses.
Now,
because
Kimberly-Clark
has
proven
it
can
replenish
supplies
more
efficiently,
Costco
needs
to
keep
only
a
two-week
supply.
What’s
more,
Costco
says
its
shelves
are
less
likely
to
go
empty
under
the
new
system.
That’s
important
for
both
retailer
and
supplier,
because
consumer
stud-
ies
indicate
that
a
majority
of
customers
will
walk
out
of a
store
empty-handed
if
they
can’t
find
a
particular
item
they
need.
P&G,
for
example,
estimates
that
an
average
retailer’s
loss
from
out-of-stocks
runs
about
11
percent
of
annual
sales.
For
Costco,
which
keeps
its
costs
down
by
typi-
cally
offering
just
one
brand-name
product
and
its
own
private-label
Kirkland
Signature
product
in
each
category,
maintaining
supplies
on
shelves
is
crucial.
246
DESIGNING
AND
MANAGING
THE
SUPPLY
CHAIN
and
competitors’
prices
and
chatting
up
store
man-
agers
and
customers,
Recently,
when
Ms.
Imes
saw
shoppers
stowing
diapers
on
the
bottom
rung
of
their
carts,
she
called
Huggies
brand
managers
to
caution
them
not
to
make
the
packages
wider.
Noticing
that
a
particular
store
often
ran
low
on
Depend
incontinence
under-
wear
at
the
beginning
of
the
month,
a
Costco
man-
ager
told
Ms.
Imes
that
residents
of
a
retirement
center
next
door
always
shopped
then.
So
she
alerted
Mr.
Fafnis,
who
programmed
his
computer
accordingly.
The
importance
of
supply
chain
hasn’t
been
lost
on
Kimberly-Clark
itself,
which
is
trying
to
apply
the
same
principles
to
its
own
suppliers.
These
days,
it
Designing
and
Managing
the
Supply
Chain,
Third
Edition
keeps
less
than
a
month’s
supply
of
diapers
in
its
own
warehouses,
down
nearly
50
percent
over
the
past
two
years.
For
now,
raw-material
shipments
remain
the
weak
link.
Advances
are
small,
focusing
on
such
details
as
how
the
company
stocks
Velcro
tabs
for
its
diapers.
Two
years
ago,
Kimberly-Clark
began
sharing
its
production
plans
with
Velcro
USA
Inc.
via
weekly
e-mails.
That
cut
Velcro
inventory
60
percent,
saving
several
million
dollars.
Kimberly-Clark
says
it’s
trying
to
cut
costs
fur-
ther.
Jim
Steffen,
the
company’s
president
of
U.S.
consumer
sales,
regularly
reminds
his
staff
that
the
retailer
is
the
customer.
“The
last
time
I
looked,”
he
says,
“we
didn’t
own
any
stores.”
By
the
end
of
this
chapter,
you
should
be
able
to
answer
the
following
questions:
inventory
levels
at
the
retailer?
nal
sources
be
used?
formance?
advantage?
8.1
INTRODUCTION
Why
are
major
retailers
moving
toward
relationships
in
which
the
supplier
manages
When
should
a
company
handle
its
logistics
needs
in-house,
and
when
should
exter-
What
other
types
of
business
partnerships
can be
used
to
improve
supply
chain
per-
Can
pressures
such
as the
ones
described
in
this
case
be
used
to
a
company’s
One
of
the
paradoxes
of
business
today
is
that
at
the
same
time
that
complex
business
practices
(such
as
the
ones
we
have
discussed
in
the
preceding
chapters)
are
becoming
essential
for
firms
to
survive
and
thrive,
the
necessary
financial
and
managerial
resources
to
implement
these
practices
are
becoming
increasingly
scarce.
This
is
one
reason
why
it
may
not
always
be
effective
to
perform
all
of
these
key
business
func-
tions
in-house.
Frequently,
a
company
may
find
it
effective
to
use
other
firms
with
special
resources
and
technical
knowledge
to
perform
these
functions,
Even
if
firm
has
the
available
resources
to
perform
particular
task,
another
firm
in
the
supply
chain
may
sometimes
be
better
suited
to
perform
that
task
simply
because
its
relative
location
in
the
supply
chain
better
positions
it
to
do
so.
Often,
a
combination
of
position
in
the
supply
chain,
resources,
and
expertise
determines
the
most
appropriate
firm
in
the
supply
chain
to
perform
a
particular
func-
tion.
Of
course,
it is
not
enough
to
know
who
in
the
supply
chain
should
perform
a
particular
function—steps
must
be
taken
so
that
the
function
is
actually
performed
by
the
appropriate
firm.
As
with
any
business
function,
there
are
four
basic
ways
for
a
firm
to
ensure
that
a
logistics-related
business
function
is
completed
[125]:
248
DESIGNING
AND
MANAGING
THE
SUPPLY
CHAIN
firm.
Similarly,
partnerships
between
companies
with
complementary
product
lines
can
add
value
to
both
companies’
products.
Improving
market
access.
Partnerships
that
lead
to
better
advertising
or
increased.
access
to
new
market
channels
can be
beneficial.
For
example,
complementary
consumer
product
manufacturers
can
cooperate
to
address
the
needs
of
major
retailers,
increasing
sales
for
everyone.
Strengthening
operations.
Alliances
between
appropriate
firms
can
help
to
improve
operations
by
lowering
system
costs
and
cycle
times.
Facilities
and
resources
can
be
used
more
efficiently
and
effectively.
For
example,
companies
with
complementary
seasonal
products
can
effectively
use
warehouses
and
trucks
year-round,
Adding
technological
strength.
Partnerships
in
which
technology
is
shared
can
help
add
to
the
skills
base
of
both
partners.
Also,
the
difficult
transitions
between
old
and
new
technologies
can
be
facilitated
by
the
expertise
of
one
of
the
partners.
For
example,
a
supplier
may
need
a
particular
enhanced
information
system
to
work
with
a
certain
customer.
Partnering
with
a
firm
that
already
has
expertise
in
this
system
makes
it
easier
to address
difficult
technological
issues.
Enhancing
strategic
growth.
Many
new
opportunities
have
high
entry
barriers.
Partnerships
might
enable
firms
to
pool
expertise
and
resources
to
overcome
these
barriers
and
explore
new
opportunities.
Enhancing
organizational
skills.
Alliances
provide
a
tremendous
opportunity
for
organizational
learning.
In
addition
to
learning
from
one
another,
partners
are
forced
to
learn
more
about
themselves
and
to
become
more
flexible
so
that
these
alliances
work.
Building
financial
strength.
In
addition
to
addressing
these
competitive
issues,
alliances
can
help
to
build
financial
strength.
Income
can
be
increased
and
adminis-
trative
costs
can
be
shared
between
partners
or
even
reduced
owing
to
the
expertise
of
one
or
both
of
the
partners.
Of
course,
alliances
also
limit
investment
exposure
by
sharing
risk.
Strategic
alliances
have
their
downsides.
The
list
above
is
useful
for
determining
these.
Each
company
has
its
core
strengths
or
competencies—specific
talents
that
differentiate
the
company
from
its
competitors
and
give
it
an
advantage
in
the
eyes
of
its
customers.
These
core
strengths
must
not
be
weakened
by
the
alliance,
which
can
happen
if
resources
are
diverted
from
these
strengths
or
if
technological
or
strategic
strengths
are
compromised
to
make
the
partnership
successful.
Similarly,
key
differences
with
competitors
must
not
be
diminished.
This
is
possible
if
key
technology
is
shared
or
if
entry
barriers
are
reduced
for the
competition
Determining
these
core
strengths
is
clearly
very
important;
unfortunately,
it
is
also
very
difficult;
what
they
are
depends
on
the
nature
of
the
business
and
of
the
firm.
Core
strengths
don’t
necessarily
correspond
to
a
large
investment
of
resources,
and
they
may
be
intangible
items
such
as
management
skills
or
brand
image.
To
determine
a
firm’s
core
strengths,
consider
how
the
firm’s
internal
capabilities
contribute
to dif-
ferentiating
it
from
its
competition
in
each
of
the
seven
key
items
listed
above.
Now,
how
will
strategic
alliances
help
or
hurt
in
each
of
these
areas?
See
more
on
this
topic
in
Chapter
9
where
we
discuss
outsourcing
decisions.
The
following
example
illustrates
the
advantages
and
disadvantages
of
strategic
alliances.
Consider
how
IBM,
Intel,
and
Microsoft
benefited
and
were
hurt
by
the
relationships
described
in
this
example.
Designing
and
Managing
the
Supply
Chain,
Third
Edition
250
DESIGNING
AND
MANAGING
THE
SUPPLY
CHAIN
services
but
not
own
assets
on
their
own.
Non-asset-owning
third-party
logistics
firms
are
sometimes
called
fourth-party
logistics
providers
(4PL).
Surprisingly,
the
use
of
third-party
logistics
is
most
prevalent
among
large
compa-
nies.
Firms
such
as
3M,
Eastman
Kodak,
Dow
Chemical,
Time
Warner,
and
Sears
Roebuck
are
turning
over
large
portions
of
their
logistics
operations
to
outside
suppli-
ers.
Third-party
logistics
providers
are
finding
it
hard
to
persuade
small
companies
to
employ
their
services,
although
this
may
change
as
the
use
of
3PL
becomes
more
prevalent
and
as
3PL
providers
make
a
larger
effort
to
develop
relationships
with
smaller
companies
[27].
8.3.2
Advantages
and
Disadvantages
of
3PL
Most
of
the
general
advantages
and
disadvantages
of
strategic
alliances
described
in
Section
8.2
apply
here.
Focus
on
Core
Strengths
The
most
frequently
cited
benefit
of
using
3PL
providers
is
that
it
allows
a
company
to
focus
on
its
core
competencies.
With
corporate
resources
becoming
increasingly
limited,
it
is
often
difficult
to
be
an
expert
in
every
facet
of
the
business.
Logistics
outsourcers
provide
a
company
with
the
opportunity
to
focus
on
that
company’s
particular
area
of
expertise,
leaving
the
logistics
expertise
to
the
logistics
companies.
(Of
course,
if
logistics
is
one
of
the
company’s
areas
of
expertise,
then
outsourcing
may
not
make
sense.)
EXAMPLE
8-2
The
partnership
between
Ryder
Dedicated
Logistics
and
General
Motors’Saturn
division
is
a
good
example
of
these
benefits.Saturn
focuses
on
automobile
manufacturing
and Ryder
man-
ages
most
of
Saturn's
other
logistics
considerations.Ryder
deals
with
vendors;delivers
parts
to
the
Saturn
factory
in
Spring
Hill,
Tennessee;and
delivers
finished
vehicles
to
the
dealers.Saturn
orders
parts
using
electronic
data
interchange
(EDI)
and sends
the
same
information
to
Ryder.
Ryder
makes
all
the
necessary
pickups
from
300
different
suppliers
in
the
United
States,
Canada,
and
Mexico,
using
special
decision-support
software
to
effectively
plan
routes
to
minimize
trans-
portation
costs
[55].
127M
id
=
eed
British
Petroleum
(BP)
and
Chevron
Corp.also
wished
to
stick
to
their
core
competencies.To
do
this,
they
formed
Atlas
Supply,
a
partnership
of
about
80
suppliers,
to
deliver
items
such
as
spark
plugs,
tires,
window-washing
fluid,
belts,
and
antifreeze
to
their
6,500
service
stations.Rather
than
use
the
distribution
networks
of
either
BP
or
Chevron
or
create
a
new
one,
Atlas
outsourced
all
logistics
to
GATX,
which
is
responsible
for
running
five
distribution
centers
and
maintaining
inven-
tory
of
6,500
SKUs
at
each
service
station.Each
service
station
orders
supplies
through
its
oil
com-
pany,
which
forwards
the order
to
Atlas
and
then
to
GATX.Each
station
has
a
pre-assigned
ordering
day
to
avoid
system
bottlenecks.GATX
systems
determine
appropriate
routes
and
config-
urations
and
transmit
orders
to
the
DC.The
next
day,
the
DC
selects
and
packs
the
orders,
and
trucks
are
loaded
in
the
appropriate
order
based
on
the
delivery
schedule.As
deliveries
are
made,
returns
and
deliveries
from
Atlas
suppliers are
picked
up.GATX
electronically
informs
Atlas,
Chevron,
and
BP
of
the
status
of
all
deliveries.
The
companies
save
enough
on
transportation
costs
alone
to
justify
this
partnership,
and
the
two
oil
companies
have
managed
to
reduce
the
number
of
DCs
from
13
to
5
and
significantly
improve
service
levels
[5].
Provide
Technological
Flexibility
The
ever-increasing
need
for
technological
flexi-
bility
is
another
important
advantage
of
the
use
of
3PL
providers.
As
requirements
Designing
and
Managing
the
Supply
Chain,
Third
Edition
252
DESIGNING
AND
MANAGING
THE
SUPPLY
CHAIN
Important
Disadvantages
of
3PL
The
most
obvious
disadvantage
of
the
use
of
3PL
providers
is
the
oss
of
control
inherent
in
outsourcing
a
particular
function.
This
is
especially
true
for
outbound
logistics
where
3PL
company
employees
themselves
might
interact
with
a
firm’s
customers.
Many
third-party
logistics
firms
work
very
hard
to
address
these
concerns.
Efforts
include
painting
company
logos
on
the
sides
of
trucks,
dressing
3PL
employees
in
the
uniforms
of
the
hiring
company,
and
providing
extensive
reporting
on each
customer
interaction.
Also,
if
logistics
is
one
of
the
core
competencies
of
a
firm,
it
makes
no
sense
to
out-
source
these
activities
to a
supplier
who
may
not
be
as
capable
as
the
firm’s
in-house
expertise.
For
example,
Wal-Mart
built
and
manages
its
own
distribution
centers
and
Caterpillar
runs
its
parts
supply
operations,
These
are
competitive
advantages
and
core
competencies
of
these
firms,
so
outsourcing
is
unnecessary.
In
particular,
if
cer-
tain logistics
activities
are
within
the
core
competencies
of
the
firm
and
others
are
not,
it
might
be
wise
to
employ
3PL
providers
for
only
those
areas
that
outside providers
can
handle
better
than
the
hiring
firm.
For
example,
if
VMI
replenishment
strategies
and
materials
handling
are
core
competencies
of
a
company
but
transportation
is
not,
a
3PL
firm
could
be
contacted
to
handle shipments
from
the
dock
to
the
customer
exclusively,
Similarly,
pharmaceutical
companies
build
and
own
DCs
for
controlled
drugs,
but
often
use
public
warehouses
located
closer
to
the
customer
for
items
that
are
less
expensive
and
easier
to
control
[10].
8.3.3
3PL
Issues
and
Requirements
A
third-party
logistics
contract
is
typically
a
major
and
complex
business
decision.
Other
than
the
pros
and
cons
listed
above,
there
are
many
considerations
that
are
criti-
cal in
deciding
whether
an
agreement
should be
entered
into
with
a
particular
3PL
provider.
1,
Know
your
own
costs.
Among
the
most
basic
issues
to
consider
in
selecting
a
3PL
provider
is
to
know
your
own
costs
so
they
can
be
compared
with
the
cost
of
using
an
outsourcing
firm.
Often
it
is
necessary
to
use
activity-based
costing
techniques,
which
involve
tracing
overhead and
direct
costs
back
to
specific
products
and
ser-
vices
[89].
2.
Customer
orientation
of
the
3PL.
Of
course,
it
is
not
enough
to
select
a
provider
based
on
cost
alone.
Many
of
the
advantages
listed
above
involve
intangibles
such
as
flexibility.
Therefore,
the
strategic
logistics
plan
of
the
company
and
how
a
3PL
provider
would
fit
into
this
plan
must
be
considered
carefully.
A
survey
of
3PL
providers
[117]
identified
the
following
characteristics
as
most
critical
to
the
suc-
cess
of
a
3PL
agreement.
The
most
important
was
the
customer
orientation
of
the
provider;
that
is,
the
value
of
a
3PL
relationship
is
directly
related
to
the
ability
of
the
provider
to
understand
the
needs
of
the
hiring
firm
and
to
adapt
its
services
to
the
special
requirements
of
that
firm.
The
second
most
important
factor
was
relia-
bility.
The
flexibility
of
the
provider,
or
its
ability
to
react
to
the
changing
needs
of
the
hiring
firm
and
the
needs
of
that
firm’s
customers,
was
third.
Significantly
fur-
ther
down
the
list
were
cost
savings.
Specialization
of
the
3PL.
When
choosing
a potential
3PL
provider,
some
experts
suggest
that
companies
should
consider
firms
whose
roots
lie
in
the
partic-
ular area
of
logistics
that
is
most
relevant
to
the
logistics
requirements
in
question.
For
example,
Roadway
Logistics,
Menlo
Logistics,
and
Yellow
Logistics
evolved
from
major
LTL
carriers;
Exel
Logistics,
GATX,
and
USCO
started
as
warehouse
managers;
and
UPS
and
Federal
Express
have
expertise
in
the
timely
handling of
s
254
DESIGNING
AND
MANAGING
THE
SUPPLY
CHAIN
*
Specific
criteria
regarding
subcontractors
should
be
discussed.
«
Arbitration
issues
should
be
considered
before
entering
into
a
contract.
*
Escape
clauses
should
be
negotiated
into
the
contract.
*
Methods
of
ensuring
that
performance
goals
are
being
met
should
be
discussed
[9].
8.4
RETAILER-SUPPLIER
PARTNERSHIPS
The
formation
of
strategic
alliances
between
retailers
and
their
suppliers
is
becoming
ubiquitous
in
many
industries,
We
saw
in
Chapter
5
that
variation
in
demand
to
sup-
pliers
from
retailers
in
traditional
retailer-supplier
relationships
is
far
greater
than
the
variation
in
demand
seen
by
retailers.
In
addition,
suppliers
have
far
better
knowledge
of
their
lead
times
and
production
capacities
than
retailers
do.
Thus,
as
margins
get
tighter
and
customer
satisfaction
becomes
even
more
important,
it
makes
sense
to
cre-
ate
cooperative
efforts
between
suppliers
and
retailers
in
order
to
leverage
the
knowl-
edge
of both
parties.
These
are
called
retailer-supplier
partnership
(RSP)
and
we
describe
some
examples
in
the
next
sections.
8.4.1
Types
of
RSP
The
types
of
retailer-supplier
partnerships
can
be
viewed
on
a
continuum.
At
one
end
is
information
sharing,
which
helps
the
vendor
plan
more
efficiently,
and
at
the
other
is
a
consignment
scheme,
where
the
vendor
completely
manages
and
owns
the
inven-
tory
until
the
retailer
sells
it.
In
a
basic
quick
response
strategy,
suppliers
receive
POS
data
from
retailers
and
use
this
information
to
synchronize
their
production
and
inventory
activities
with
actual
sales
at
the
retailer.
In
this
strategy,
the
retailer
still
prepares
individual
orders,
but
the
POS
data
are
used
by
the
supplier
to
improve
forecasting
and
scheduling
and
to reduce
lead
time.
Se
Among
the
first
companies
to
utilize
this
scheme
was
Milliken
and
Company,
a
textile
and
chemi-
cals
company.
Milliken
worked
with
several
clothing
suppliers
and
major
department
stores,
all
of
which
agreed
to
use
POS
data
from
the
department
stores
to
“synchronize"their
ordering
and
manufacturing
plans.The
lead
time
from
order
receipt
at
Milliken’s
textile
plants
to
final
clothing
receipt
at
the
department
stores
was
reduced
from
18
weeks
to
3
weeks
[185].
In
a
continuous
replenishment
strategy,
sometimes
called
rapid
replenishment,
ven-
dors
receive
POS
data
and
use
these
data
to
prepare
shipments
at
previously
agreed-
upon
intervals
to
maintain
specific
levels
of
inventory.
In an
advanced
form
of
continuous
replenishment,
suppliers
may
gradually
decrease
inventory
levels
at
the
retail
store
or
distribution
center
as
long
as
service
levels
are
met.
Thus,
in
a
structured
way,
inventory
levels
are
continuously
improved.
In
addition,
the
inventory
levels
need
not
be
simple
levels,
but
could
be
based
on
sophisticated
models
that
change
the
appropriate
level
based
on
seasonal
demand,
promotions,
and
changing
consumer
demand
[151].
In
a
vendor-managed
inventory
(VMI)
system,
sometimes
called
a
vendor-managed
replenishment
(VMR)
system,
the
supplier
decides
on
the
appropriate
inventory
levels
of
each
of
the
products
(within
previously
agreed-upon
bounds)
and
the
appropriate
inventory
policies
to
maintain
these
levels.
In
the
initial
stages,
vendor
suggestions
o
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and
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Chain,
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and
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Edition
256
DESIGNING
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MANAGING
THE
SUPPLY
CHAIN
because
such
a partnership
may
shift
power
within
the
organization
from
one
group
to
another.
For
instance,
when
a
VMI
partnership
is
implemented,
the
day-to-day
con-
tacts
with
retailers
shift
from
sales
and
marketing
personnel
to
logistics
personnel.
This
implies
that
incentives
for
and
compensation
of
the
sales
force
have
to
be modi-
fied
since
the
retailer’s
inventory
levels
are
driven
by
supply
chain
needs,
not
by
pric-
ing
and
discount
strategies.
This
change
in
power
may
require
significant
involvement
of
top
management.
Finally,
RSP
requires
the
partners
to
develop
a
certain
level
of
trust
without
which
the
alliance
is
going
to
fail.
In
VMI,
for
example,
suppliers
need
to
demonstrate
that
they
can
manage
the
entire
supply
chain;
that
is,
they
can
manage
not
only
their
own
inventory
but
also
that
of
the
retailer.
Similarly,
in
quick
response,
confidential
infor-
mation
is
provided
to
the
supplier,
which
typically
serves
many
competing
retailers.
In
addition,
strategic
partnering
in
many
cases
results
in
significant
reduction
in
inven-
tory
at
the
retailer
outlet.
The
supplier
needs
to
make
sure
that
the
additional
available
space
is
not
used
to
benefit
the
supplier’s
competitors.
Furthermore,
the
top
manage-
ment
at
the
supplier
must
understand
that
the
immediate
effect
of
decreased
inventory
at
the
retailer
will
be
a
one-time
loss
in
sales
revenue.
8.4.3
Inventory
Ownership
in
RSP
Several
important
issues
must
be
considered
when
entering
into
a
retailer-supplier
partnership.
One
major
issue
is
the
decision
concerning
who
makes
the
replenishment
decisions.
This
places the
partnership
on
the
continuum
of
strategic
partnership
possi-
bilities
described
above.
This
can
be
done
in
stages,
first
with
information
and,
later,
decision
making,
which
is
shared
between
the
partners.
Inventory
ownership
issues
are
critical
to
the
success
of
this
kind
of
strategic
alliance
effort,
especially
one
involy-
ing
vendor-managed
inventory.
Originally,
ownership
of
goods
transferred
to
the
retailer
when
goods
were
received.
Now,
some
VMI
partnerships
are
moving
to a
con-
signment
relationship
in
which
the
supplier owns
the
goods
until
they
are
sold.
The
benefit
of
this
kind of
relationship
to
the
retailer
is
obvious:
lower
inventory
costs.
Furthermore,
since
the
supplier
owns
the
inventory,
it
will
be
more
concerned
with
managing
it
as
effectively
as
possible.
One
possible
criticism
of
the
original
VMI
scheme
is
that
the
vendor
has
an
incen-
tive to
move
to
the
retailer
as
much
inventory
as
the
contract
allows.
If
this
is
a
fast-
moving
item
and
the
partners
had
agreed
upon
two
weeks
of
inventory,
this
may
be
exactly
what
the
retailer
wants
to
see
in
stock.
If,
however,
this
is
a
more
complex
problem
of
inventory
management,
the
vendor
needs
to
have
an
incentive
to
keep
inventories
as
low
as
possible,
subject
to
some
agreed-upon
service
level.
For
exam-
ple,
Wal-Mart
no
longer
owns
the
stock
for
many
of
the
items
it
carries,
including
most
of
its
grocery
purchases.
It
only
owns
them
briefly
as
they
are
being
passed
through
the
checkout
scanner
[33].
It
is
less
clear,
however,
why
this
consignment
arrangement
is
beneficial
to
the
supplier
since
the
supplier
owns
inventory
for
a
longer
period
of
time.
Many
times,
as
in
the
case
of
Wal-Mart,
the
supplier
has
no
choice
because
the
market
dictates
this
kind
of
arrangement.
Even
ifthis
is
not
the
case,
such
an
arrangement
is
benefi-
cial
to
the
supplier
because
it
allows
the
supplier
to
coordinate
distribution
and
pro-
duction, thus
reducing
total
cost.
To
better
understand
this
issue,
recall
from
Chapter
5
the
discussion
of
the
difference
between
global
optimization
and
local
optimization.
In
the
traditional
supply
chain,
each
facility
does
what
is
best
for
that
facility;
that
is,
the
retailer
manages
its
own
inventory
without
regard
to
the
impact
on
the
supplier.
The
supplier
in
turn
identifies
a
policy
that will
optimize
its
own
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DESIGNING
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MANAGING
THE
SUPPLY
CHAIN
8.4.5
Steps
in
RSP
Implementation
The
important
points
listed
above
can
be
summarized
in
the
following
steps
in
VMI
implementation
[97]:
1.
Initially,
the
contractual
terms
of
the
agreement
must
be
negotiated.
These
include
decisions
concerning
ownership
and
when
it
is
to
be
transferred,
credit
terms,
ordering
responsibilities,
and
performance
measures
such
as
service
or
inventory
levels,
when
appropriate,
2.
Next,
the
following
three
tasks
must
be
executed:
°
If
they
do
not
exist,
integrated
information
systems
must be
developed
for
both
sup-
plier
and
retailer.
These
information
systems
must
provide
easy
access
to
both
parties.
°
Effective
forecasting
techniques
to
be
used
by
the
vendor
and
the
retailer
must
be
developed.
*
A
tactical
decision
support
tool
to
assist
in
coordinating
inventory
management
and
transportation
policies
must
be
developed.
The
systems
developed,
of
course,
will
depend
on
the
particular
nature
of
the
partnership.
8.4.6
Advantages
and
Disadvantages
of
RSP
One
advantage
of
VMI
relationships
is
nicely
illustrated
by
the
following
example.
Saas)
Whitehall
Robbins
(WR),
which
makes
over-the-counter
drugs
such
as
Advil,
has
an
RSP
relation-
ship
with
Kmart.Like
First
Brands,
WR
initially
disagreed
with
Kmart
about
forecasts.In
this
case,
it
turned
out
that
WR
forecasts
were
more
accurate
because
the
company
has
a
much
more
exten-
sive
knowledge
of
its
products than
Kmart
does.For example,
Kmart’s
Chap
Stick
forecasts
did
not
take
the
seasonality
of
the
product
into
account.In
addition,
WR
planners
can
take
production
issues,
such
as
planned
downtime,
into
account
when
planning
shipments.
Also,
WR
benefits
in
another
way.In
the
past,
Kmart
would
order
large
quantities
of
seasonal
items
at
the
beginning
of
the
season,
often
linked
to
a
promotion.
This
practice
often
led
to
returns
because
it
was
difficult
for
Kmart
to
accurately
forecast
the
amount
it
would
sell.Now
WR
supplies
weekly
demand
at
an
“everyday
low
cost,”so
large
orders
and
preseason
promotions
have
been
eliminated,
which
in
turn
has
greatly reduced
returns.
Inventory
turns
for
seasonal
items
have
gone
from
3
to
more
than
10
and
for
nonseasonal
items
from
12-15
to
17-20
[54].
Thus,
in
general,
a
huge
advantage
of
RSPs
is
the
knowledge
the
supplier
has
about
order
quantities,
implying
an
ability
to
control
the
bullwhip
effect
(see
Chapter
5).
This
of
course
varies
from
one
type
of
partnership
to another,
In
quick
response,
for
instance,
this
knowledge
is
achieved
through
transfer
of
customer
demand
informa-
tion
that
allows
the
supplier
to
reduce
lead
time,
while
in
VMI
the
retailer
provides
demand
information
and
the
supplier
makes
ordering
decisions,
thus
completely
con-
trolling
the
variability
in
order
quantities.
Of
course,
this
knowledge
can
be
leveraged
to
reduce
overall
system
costs
and
improve
overall
system
service
levels.
The
benefits
to
the
supplier
in
terms
of
better
service
levels,
decreased
managerial
expenses,
and
decreased
inventory
costs
are
obvious.
The
vendor
should
be
able
to reduce
forecast
uncertainties
and
thus
better
coordinate
production
and
distribution.
To
be
more
spe-
cific,
reduced
forecast
uncertainties
lead
to
reduced
safety
stocks,
reduced
storage
and
delivery
costs,
and
increased
service
levels
[97],
as
we
noted
in
our
discussion
of
the
bullwhip
effect
in
Chapter
5.
In
addition
to
the
important
benefits
listed
above,
implementing
a
strategic
partnership
provides a
variety
of
side
benefits.
It
provides
a
good
opportunity
for
the
reengineering
of
the
retailer-supplier
relationship.
For
example,
redundant
order
entries
can
be
eliminated,
Designing
and
Managing
the
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Chain,
Third
Edition
260
DESIGNING
AND
MANAGING
THE
SUPPLY
CHAIN
Ease
VF
Corporation’s
Market
Response
System
provides
another
success
story
of
VMI.
The
company,
which
has
many
well-known
brand
names
(e.g.,
Wrangler,
Lee,
the
North
Face,
and
Nautica),
began
Its
program
in
1989.Currently,
about
40
percent
of
its
production
is
handled
through
some
type
of
automatic
replenishment
scheme.
This
is
particularly
notable
because
the
program
encom-
passes
350
different
retailers,
40,000
store
locations,
and
more
than
15
million
levels of
replenish-
ment.Each
division
uses
automatic
software
to
manage
the
huge
influx
of
data,
and
special
techniques
developed
at
VF
to
cluster
the
data
so
that
they
are
more
manageable.VF's
program
is
considered
one
of
the
most
successful
in
the
apparel
industry
[181].
Sw
Tse
Spartan
Stores,
a
grocery
chain,
shut
down
its
VMI effort
about
one
year
after
its
inception.In
examining
the
reasons
for
the
failure
of
the
program,
some
important
ingredients
for
a
successful
VMI
program
became
clear.One
problem
was
that
buyers
were
not
spending
any
less
time
on
reorders
than
they
had
before
because
they
didn’t
trust
the
suppliers
enough
to
stop
their
careful
monitoring
of
the
inventories
and
deliveries
of
the
VMI
items.Buyers
intervened
at
the
slightest
hint
of
trouble.Further,
the
suppliers
didn’t
do
much
to
allay
these
fears.
The
problems
were
not
with
the
suppliers'forecasts;instead,
they
were
due
to
the
suppliers'inability
to
deal
with
product
promo-
tions,
which
are
a
key
part
of
the
grocery
business.Because
suppliers
were
unable
to
account
for
promotions
appropriately,
delivery
levels
were
often
unacceptably
low
during
these
periods
of
peak
demand.In
addition,
Spartan
executives
felt
that
the
inventory
levels
achieved
by
the
VMI
program
were
no
lower
than
the
levels
the
company
could
have
achieved
with
a
well-managed
traditional
supplier
program.
It
should
be
noted
that
Spartan
considered
the
VMI
program
successful
with
some
suppliers.
These
were
the
suppliers
with
better
forecasting
skills.In
addition,
Spartan
intends
to
maintain
the
continuous
replenishment
programs,
in
which
inventory
levels
automatically
trigger
fixed
delivery
quantities
with some
of
its
suppliers
[135].
8.5
DISTRIBUTOR
INTEGRATION
For
years,
business
experts
have
advised
manufacturers,
particularly
industrial
manufacturers,
to
treat
their
distributors
like
partners
[149].
Typically,
this
meant
appreciating
the
value
of
the
distributors
and
their
relationship
with
the
end
users,
and
providing
them
with
the
necessary
support
to
be
successful.
Distributors
have
a
wealth
of
information
about
customer
needs
and
wants,
and
successful
manufactur-
ers
use
this
information
when
developing
new
products
and
product
lines.
Similarly,
distributors
typically
rely
on
manufacturers
to
supply
the
necessary
parts
and
expertise.
Eee
Sees
The
former
chairman
and
CEO
of
Caterpillar
Corporation,
Donald
Fites,
credits
Caterpillar
dealers
with
much
of
his
company’s
recent
success.Fites
points
out
that
dealers
are
much
closer
to
cus-
tomers
than
to
the
corporation,
and
can
respond
more
rapidly
to
customer
needs.
They
arrange
financing
when
the
product
is
purchased
and
carefully
monitor,
repair,
and
service
the
product.
Fites
says
that
“the
dealer
creates
the
image
of
a
company
that
doesn't
just
stand
behind
its
prod-
ucts
but
with
its
products
anywhere
in
the
world."Caterpillar
believes
that
its
dealer
network
gives
the
company
a
tremendous
advantage
over
its
competition,
especially
the
big
Japanese
construc-
tion
and
mining
equipment
manufacturers
such
as
Komatsu
and
Hitachi
[74].
This
view
of
distributors
is
changing,
however,
as
customer
service
needs
present
new
challenges,
and
information
technology
rises to
meet
these
challenges.
Even
a
Designing
and
Managing
the
Supply
Chain,
Third
Edition
262
DESIGNING
AND
MANAGING
THE
SUPPLY
CHAIN
or
point-of-sale
materials.
The
other
subsidiaries,
as
well
as
customers,
are
directed
to
these centers
of
excellence
to
meet
particular
requests
[150].
8.5.2
Issues
in
Distributor
Integration
There
are
two
major
issues
involved
in
implementing
a
DI
alliance.
First,
distributors
may
be
skeptical
of
the
rewards
of
participating
in
such
a
system.
There
is
the
chance
that
they
will feel
they
are
providing
some
of
their
expertise
in
inventory
control
to
less
skilled
partners,
especially
when
some
ofthe
distributors
are
larger
and have
big-
ger
inventories
than
others.
In
addition,
participating
distributors will
be
forced
to
rely
upon
other
distributors,
some
of
whom
they
may
not
know,
to
help
them
provide
good
customer
service.
This
new
kind
of
relationship
also
tends
to
take
certain
responsibilities
and
areas
of
expertise
away
from
certain
distributors
and
concentrate
them
on
a
few
distributors.
It
is
not
surprising
that
distributors
might
be
nervous
about
losing
these
skills
and
abili-
ties.
This
explains
why
establishing
a
DI
relationship
requires
a
large
commitment
of
resources
and
effort
on
the
part
of
the
manufacturing
company.
Distributors
must
feel
sure
that
this
is
a
long-term
alliance.
Organizers
must
work
hard
to
build
trust
among
the
participants.
Finally,
the
manufacturer
may
have
to
provide
pledges
and
guaran-
tees
to
ensure
distributor
commitment.
EXAMPLE
G
Dunlop-Enerka
is
a
Dutch
company
that
supplies
conveyer
belts
to
mining
and
manufacturing
com-
panies worldwide.
Traditionally,
the
company
met
maintenance
and
repair
requirements
by
storing
vast
quantities
of
inventory
at
distributors
throughout
Europe.
To
reduce
inventories,
the
company
installed
a
computer-based
information
system,
Dunlocomm,
to
monitor
inventory
at
the
ware-
houses
of
each
of
its
distributors.When
a
part
is
needed,
a
distributor
uses
the
system
to
order
the
part
and
arrange
for
its
delivery.To
ensure
distributor
participation,
Dunlop-Enerka
guaranteed
24-
hour
delivery
of
each
part
to
each
distributor—if
a
part
wasn't
in
stock,
Dunlop-Enerka
custom
manufactured
and
shipped
it
within
the available
time
window.
This
guarantee
reassured
distribu-
tors
enough
so
they
committed
to
the
system
and,
over
time,
inventory
throughout
the
system
dropped
by
20
percent
[150].
SUMMARY
In
this
chapter,
we
examined
various
types
of
partnerships
that
can
be
used
to
manage
the
supply
chain
more
effectively.
We
started
off
by
discussing
the
different
paths
a
firm
can
take
to
ensure
that
particular
supply
chain—related
issues
are
addressed,
including
performing
them
internally
or
outsourcing
them
completely.
Obviously,
many
different
strategic
and
tactical
issues
play
a
part
in
the
selection
of
the
most
appropriate
strategy.
We
discussed
a
framework
that
can
help
in
selecting
the
most
appropriate
way
to
address
a
particular
logistics
issue.
Increasingly,
third-party
logistics
providers
are
taking
over
some
of
a
firm’s
logistics
responsibilities.
There
are
both advantages
and
disadvantages
to
outsourcing
the
logistics
function,
as
well
as
many
important
issues
to
consider
once
the
decision
has
been
made
and
a
3PL
agreement
is
being
imple-
mented.
Retailer—supplier
partnerships,
in
which
the
supplier
manages
a
portion
of
the
retailer's
business—typically
retail
inventories—also
are
becoming
common.
There
is
a
spectrum
of
possible
types
of
retailer-supplier
partnerships,
ranging
from
agree-
ments
that
cover
only
information
sharing,
to
agreements
in
which
the supplier
has
complete
control
over
the
retailer’s
inventory
policy.
Designing
and
Managing
the
Supply
Chain,
Third
Edition
264
DESIGNING
AND
MANAGING
THE SUPPLY
CHAIN
vendor-managed
inventory,
or
VMI,
agreement.
The
record
companies
will
be
put
in
charge
of
deciding
how
much
of
each
album,
CD,
and
cassette
title
is
delivered
to
each
store
and
when
each
delivery
is
made.
To
help
with
these
decisions,
the
record
com-
panies
will
be
provided
with
continuously
updated
point-of-sale
(POS)
data
from
each
of
the
stores.
Also,
the
record
companies
will
own
the
inventory
until
it
is
sold,
at
which
point
payment
will
be
trans-
ferred
from
the
retailers
to
the
record
companies.
Since
ADS
provides
the
record
companies
with
duplication
and
distribution
services,
the
record
companies
have
asked
ADS
to
help with
the
logis-
tics
of
the
VMI
agreement.
In
the
past,
ADS
has
shipped
to
the
distribution
centers
of
large
national
retailers,
and
the
retailers
have
arranged
for
distribution
to
the
individual
stores.
Now,
the
retailers
are
providing
strong
incentives
to
ship
directly
to
individual
stores,
Of
course,
this
means
higher
expenses
for
ADS.
In
general,
ADS’s
shipping
costs
are
increasing.
Currently,
ADS
has
a
shipping
manager
who
arranges
with
different
shippers
to
make
deliveries
on
a
shipment-by-shipment
basis.
Perhaps
there
is
Designing
and
Managing
the
Supply
Chain,
Third
Edition
a
better
way
to
manage
these
deliveries,
either
by
purchasing
a
fleet
of
trucks
and
doing
the
shipping
in
house
or
by
outsourcing
the
entire
shipping
func-
tion
to
a
third
party.
Maybe
something
between
these
two
extremes
will
be
best.
Of
course,
ADS
is
facing
even
bigger
issues,
such
as
the
future
of
the
audio
duplication
industry
as
online
audio
distribution
technologies
become
more
prevalent,
In
any
event,
each
record
company
period-
ically
reviews
its
contract
with
its
audio
duplication
service,
so
management
must
address
each
of
the
above
issues
effectively
for
the
company
to
remain
successful.
CASE
DISCUSSION
QUESTIONS
1.
Why
are
ADS’s
customers’
customers
moving
toward
VMI
arrangements?
2.
How
will
this
impact
ADS’s
business?
How
can
ADS
management
take
advantage
of
this
situation?
3.
How
should
ADS
manage
logistics?
4.
Why
are
the
large
national
retailers
moving
toward
a
direct
shipment
model?
SE
The
Smith
Group
The
Smith
Group
is
a
leading
U.S.
manufacturer
of
high-quality
power
and
hand
tools,
such
as
electric
drills,
hammers,
and
so
forth,
and
a
major
competitor
to
ATW,
the
company
described
in
the
case
at
the
start
of
Chapter
4.
Like
ATW,
Smith
enjoys
a
very
successful
partnership
with
their
distributors
and
dealers,
who
provide
the
majority
of
their
revenue,
and
like
ATW,
Smith
has
always
had
VMI
agree-
ments
with
their
large
distributors.
Smith’s
small
distributors,
however,
have
not
tradi-
tionally
had
electronic
data
transfer
capability
neces-
sary
to
implement
VMI.
To
overcome
this,
however,
Smith
implemented
a
Kanban
system
with
many
of
the
small
distributors.
In
this
approach,
the
Smith
Group
is
imitating the
Kanban
approach
developed
by
Toyota
to
govern
the
flow
of
material
through
a
plant.
In
the
Kanban
system
used
by
Toyota,
produc-
tion
is
triggered
by
a
demand
through
the
use
of
cards.
This
is
also
the
approach
taken
by
Smith.
When
delivery
trucks
arrive
at
a
distributor’s
facility,
they
collect
all
the
cards
that
were
detached
from
items
sold
by
the
distributors.
This
provides
the
Smith
Group
with
information
about
the
customer
demand
that
they
can
use
in
their
production
and
dis-
tribution
planning.
The Kanban
approach designed
by
the
Smith
Group
is
a
clever
way
of
implementing
an
approach
similar
to
the
VMI
strategy
without
the
need
for
elec-
tronic
data
transfer:
¢
The
system
provides
Smith
with
almost
real-time
information
about
customer
demand
without
the
need
for
EDI.
°
A
careful
analysis
of
the
card
system
used
by
the
Smith
Group
suggests
that
it
effectively
manages
1
ARTICLE REVIEW FINAL
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Institution Affiliation
Course Name
Instructor
Date
2
Article caption
The name of the article is “Efficiency issues in supply chain management.” As provided
by Bhatt et al. (2014).
Statement of the author's purpose
Supply chain management involves the flow of factor inputs from suppliers through final
customer management, making it one of the fundamental organizational functions. Indeed, the
authors of this article acknowledged the dire need for supply chain logistics in helping firms
achieve both effectiveness and efficiency through tracing the economic challenges that firms
experienced in the olden days (Bhatt et al.,2014). They highlighted that over the past couple of
decades (2 decades), business organizations have faced unprecedented challenges on improving
productivity and efficiency, highlighting Black Monday of October 1987as a perfect warning on
consequences of not finding a better operational way of conducting business.
Moreover, ethics is also highlighted as an insignificant factor but which, if not adequately
incorporated into the business setting, may hamper an organizational performance, even resulting
in a collapse just like Enron and world.com as they engaged in book cooking activities to
impress. Stock markets are considered an indicator of financial flow within a particular country,
and its eventual crash back in 2008 added “fuel to fire, "hence further highlighting the need for a
closer look at business operation (Bhatt et al.,2014). To improve on such mistakes, organizations
have focused on improving productivity, solutions like curing the flagging profitability,
improvement of the bottom line, maximum shareholders profit, and wealth creation through
improved profit level and downsizing.
3
Indeed, most organizations, businesses, and industries have come to embrace the practice
of downsizing and sourcing as the cure for such challenges. Despite all these efforts, it is still
apparent that a maximum level of productivity has never been achieved as many variables
contribute to better productivity. Thus, productivity, efficiency, effectiveness, quality, and
performance should be embraced by firms to achieve better operational levels. Thus, these terms
have become a modern paradigm of achieving success when applied correctly (Bhatt et al.,2014).
Hence, as discussed by the journal, the primary research purpose was to illustrate productivity
and efficiency and how businesses can incorporate such acts to achieve success.
Background of the study
A lot of research work has been conducted by many researchers on how many business
units can maximize their level of efficiency. For instance, scholars from management science,
economics, production operations, accounting system, and organizational behavior have done a
lot in this particular field. Factors like efficiency, effectiveness, quality, productivity, and overall
organizational performance, in conjunction with other factors, have been the variables that are
standard in improving performance (Bhatt et al.,2014). Even though effectiveness is difficult to
determine as it combines many aspects hence referred to as a nebulous concept, efficiency is a
subset of effectiveness that implies the totality of factor outputs obtained from a given unit of
economic value as described by the authors.
Some proponents argue that effectiveness is defined In terms of revenue that have been
generated and total facto inputs that have been sufficiently brought in. however, under this
definition, Bhatt et al. (2014) argues that it is just one of the definitions that assumes one best
way approach hence not possible for measuring other potential aspects which are also critical and
4
worth determining overall wellbeing. In this article, the work of Maarten (2008) is factored in to
give more information about the definition of efficiency (Bhatt et al., 2014). Here, through the
help of an equation, it is defined as actual outputs divided by the actual inputs. Therefore,
productivity combines both the use of effectiveness and efficiency as applied to a firm's
operations. Another aspect is the quality which is the worker’s efforts/ total cost.
Thus, it is true that increasing quality will reduce cost, meaning that in a production
process, the overall efficiency and or productivity, as per this article, is the aggregate of cost
efficiency, which entails converting capital to input resources (Liberty University Custom,
2020). Moreover, after it has been converted, other items like allocating through an optimal mix
of inputs, technicalities through the optimal amount of inputs, and scaling entail optimal volume
and minimum fixed cost. This section is completed by a study conducted by General Electric on
one of its product lines –dishwasher a study that revealed that 45% improvement in quality
increased overall labor productivity by 42% (Bhatt et al.,2014).
Application of supply chain theory
Many concepts relating to supply chain management (SCM) have been discussed in this
article. Just from the start of the article, there is just-in-time manufacturing (JIT) to improve the
overall productivity and cost reduction. Secondly, there is a broad explanation of how supplier
management can achieve operational efficiency and cost-effectiveness (Bhatt et al., 2014). In this
regard, the article stipulates that it is essential to achieve a better supply chain implementation as
forms have to identify appropriate suppliers. To clarify the critical concept, these authors
discussed factors subsets like supplier selection, supplier performance evaluation, and contract
negotiation as the critical consideration for effectively managing suppliers.
5
Indeed, supplier power is one of the core factors that can make an organization fail if
insufficient consideration is taken. Another application of the supply chain management theory
was on the tools used to improve such processes as Data Envelopment Analysis (DEA), Multi-
Objective Programming, and Analytical Hierarchical Process as the solutions for vendor
selection (Liberty University Custom, 2020). Moreover, DEA uses fractional programming was
determined to have the capacity of improving the evaluation process. Some other applications
discussed in this article include; scheduling, product screening, brand selection, and inventory
management, not forgetting transportation and information sharing.
Managerial implications
Managers can make use of this journal article in improving their level of efficiency and
effectiveness. In so doing, they can make a complete turnaround on their negative performances
by looking at the past case scenario that has been provided by this article and then take key
lessons into practice (Bhatt et al., 2014). For example, the management can learn that sustained
productivity within an enterprise is not achieved through revenue-based concentration and
modest and sound institutional practices like corporate governance and ethics, amongst other
salient factors (Min et al., 2019).
Moreover, this article looked across all aspects of the flow of systems within an
organization by connecting it with supply chain principles to provide the best solutions to most
organizations' problems. Thus, just by reviewing this article, managers can make better
decisions.
Summary
6
Over the years, many businesses have tried to meet their operational levels amidst
challenging economic and dynamic environments. Thus, to remain fully competitive and achieve
long-term sufficiency, it is important to consider efficiency in supply chain management. It is
prevalent that many business organizations have been faced with unprecedented challenges to
improve their productivity. However, what constitutes better productivity is not usually well
defined. Thus, some proponents argue that effectiveness is defined In terms of revenue that have
been generated and total facto inputs that have been sufficiently brought in.
In order to solve these problems, this article proposed factors like effectiveness and
efficiency and quality considerations as the perfect variables that contribute to productivity.
Some of the applications of supply chain theory include supplier management through supplier
selection, supplier performance evaluation, and contract negotiation as the key consideration for
effectively managing suppliers, amongst other factors. By considering this article, managers can
improve their decision-making by factoring in supply chain essentials in daily practice.
7
References
Bhatt, S. K., Bector, C. R., & Appadoo, S. S. (2014). Efficiency issues in supply chain
management. Journal of Supply Chain Management Systems, 3(2), 9.
Liberty University Custom (2020). Supply chain management (Custom ed.). New York, NY: McGraw-Hill
Create. ISBN Loose Leaf Print: 9781307611601. ISBN eBook: 9781307611458
Min, S., Zacharia, Z. G., & Smith, C. D. (2019). Defining supply chain management: in the past,
present, and future. Journal of Business Logistics, 40(1), 44-55.