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Schedule Management

Unit III

Schedule Management

A well-designed and developed method will ensure all the activities are conducted on time and all variables are integrated into the plan.

Activities	Responsible party	Estimation technique
Preparation of drawing	Architecture	Three-point estimates technique
Estimation of material cost	Surveyor	Three-point estimates technique
Estimation of labor costs &contingencies	Surveyor	Three-point estimates technique
Preparation of a formal drawing of the project.	Architect	Three-point estimates technique
Approval of the drawing from the authority.	Project manager	Fixed duration
Marking the ground	Case engineer	Three-point estimates technique
Cleaning the marked ground	Casual workers	Three-point estimates technique
Marking the ground-based on accurate dimensions	Casual workers	Fixed duration
Excavation	Casual workers	Fixed duration
Compacting the ground	Lead mansion	Fixed duration
Putting solid bases on which footing can be placed.	Lead mansion	Three-point estimates technique
Footing replacement	Lead mansion	Three-point estimates technique
Shuttering	Lead mansion	Three-point estimates technique
Footing concrete	Lead mansion	Three-point estimates technique
Column costing	Lead mansion	Three-point estimates technique
Constructing the base of the wall	Lead mansion	Fixed duration
Wall construction	Lead mansion	Fixed duration
Reinforcing openings using cement concrete	Lead mansion	Fixed duration
Pouring the roof slab	Lead mansion	Fixed duration
Fixing doors and windows	Lead mansion	Fixed duration
Fixing electrical works	Electrical technician	Fixed duration
Fixing plumbing work	Lead plumber	Fixed duration
Tiles laying	Lead mansion	Fixed duration
Painting	Interior designing team leader	Fixed duration
Terrace waterproofing	Lead plumber	Three-point estimates technique

Part A: Defining activities

Activity	Definition
Preparation of drawing	Involves laying a sketch of the building based on the client’s preferences.
Estimation of material cost	Involves estimating the cost incurred in acquiring the materials needed for the building.
Estimation of labor costs &contingencies	This involves estimating the budget that should be prepared to cater for labor and other costs that may come along the way.
Preparation of a formal drawing of the project.	After reconciling it with the client’s needs and preferences and the most cost-effective plan, this involves drawing the final building.
Approval of the drawing from the authority.	The authorities must approve the building based on whether it meets the building plan policies.
Marking the ground	It involves going to the space where the homebuilding will be established and putting on marks that identify the proposed space size.
Cleaning the marked ground	This involves clearing the ground cover to provide a clear space for the structure.
Marking the ground-based on accurate dimensions	The project team marks the ground based on the proposed solutions.
Excavation	It involves digging the trenches where the foundation lays in.
Compacting the ground	This involves trimming the excavation pits.
Putting solid bases on which footing can be placed.	This involves identifying the concrete to enforce the foundation.
Footing replacement	This involves tying together steel bars.
Shuttering	This is done to ensure the concrete attains its proper shape and prevents it from coming into contact with the soil.
Footing concrete	This involves leveling the foundation.
Column casting	The shuttering framework is shuttered, and concrete poured on the
Constructing the base of the wall	This involves using a solid material to ensure the walls are well-supported.
Wall construction	It involves building the walls using bricks.
Reinforcing openings using cement concrete	This involves putting cement concrete on the upper end of the window and door opening.
Pouring the roof slab	The roof is reinforced with a concrete slab.
Fixing doors and windows	Involves placing the windows and doors on the opening.
Fixing electrical works	This involves putting on the electrical wiring and bulbs or sockets.
Fixing plumbing work	Involves piping and ensuring the water can flow through the pipes across the building.
Tiles laying	Tiles are laid on the floor and the kitchen and bathroom walls.
Painting	Involves painting the exterior and the interior of the house.
Terrace waterproofing	This is done to ensure the running rainwater is harvested and the flow controlled within the compound to prevent flooding.

Part B: Assess activity durations

In assessing the duration of the activities, the PERT method is used. This follows the formula (O+4M+P)/6, where P is pessimistic, O is optimistic, and M is most likely (Bagshaw, 2018).

Activity	Duration
Preparation of drawing	14 days
Estimation of material cost	Seven days
Estimation of labor costs &contingencies	Seven days
Preparation of a formal drawing of the project.	Seven days
Approval of the drawing from the authority.	Three days
Marking the ground	One day
Cleaning the marked ground	Five days
Marking the ground-based on accurate dimensions	One day
Excavation	Two days
Compacting the ground	Two days
Putting solid bases on which footing can be placed.	Seven days
Footing replacement	Four days
Shuttering	Two days
Footing concrete	Four days
Column casting	Ten days
Constructing the base of the wall	Five days
Wall construction	20 days
Reinforcing openings using cement concrete	Ten days
Pouring the roof slab	One day
Fixing doors and windows	Three days
Fixing electrical works	Five days
Fixing plumbing work	Ten days
Tiles laying	Seven days
Painting	20 days
Terrace waterproofing	Five days

Part C: Sequence activities

The table used in part B represents the activities as they follow each other within a sequence in implementing the project. The following table describes the series.

Activity	Duration
Preparation of drawing	A
Estimation of material cost	B
Estimation of labor costs &contingencies	C
Preparation of a formal drawing of the project.	D
Approval of the drawing from the authority.	E
Marking the ground	F
Cleaning the marked ground	G
Marking the ground-based on accurate dimensions	H
Excavation	I
Compacting the ground	J
Putting solid bases on which footing can be placed.	K
Footing replacement	L
Shuttering	M
Footing concrete	N
Column casting	O
Constructing the base of the wall	P
Wall construction	Q
Reinforcing openings using cement concrete	R
Pouring the roof slab	S
Fixing doors and windows	T
Fixing electrical works	U
Fixing plumbing work	V
Tiles laying	W
Painting	X
Terrace waterproofing	Y

Y (COMPLETION)

Based on the forward pass method, the project will take 105 days, while the back pass method will take 155 days.

Reference

Bagshaw, K. B. (2021). PERT and CPM in Project Management with Practical Examples. American Journal of Operations Research, 11(4), 215-226.