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BDIS5e_CH06_Student_PPT.pptxCHAPTER SIX
DATA
Business Intelligence
©The McGraw-Hill Companies, All Rights Reserved
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CHAPTER OVERVIEW
SECTION 6.1 – Data, Information, Databases
The Business Benefits of High-Quality Information
Storing Information Using a Relational Database Management System
Using a Relational Database for Business Advantages
Driving Websites with Data
SECTION 6.2 – Business Intelligence
Supporting Decisions with Business Intelligence
The Business Benefits of Data Warehousing
The Power of Big Data Analytics
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SECTION 6.1
DATA, INFORMATION, AND DATABASES
©The McGraw-Hill Companies, All Rights Reserved
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LEARNING OUTCOMES
Explain the four primary traits that determine the value of information
Describe a database, a database management system, and the relational database model
Identify the business advantages of a relational database
Explain the business benefits of a data-driven website
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THE BUSINESS BENEFITS OF HIGH-QUALITY INFORMATION
Information is everywhere in an organization
Employees must be able to obtain and analyze the many different levels, formats, and granularities of organizational information to make decisions
Successfully collecting, compiling, sorting, and analyzing information can provide tremendous insight into how an organization is performing
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THE BUSINESS BENEFITS OF HIGH-QUALITY INFORMATION
Levels, Formats, and Granularities of Information
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Information Type: Transactional and Analytical
Transactional information – Encompasses all of the information contained within a single business process or unit of work, and its primary purpose is to support the performing of daily operational tasks
Analytical information – Encompasses all organizational information, and its primary purpose is to support the performing of managerial analysis tasks
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Information Type: Transactional and Analytical
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Information Type: Transactional and Analytical
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Information Timeliness
Timeliness is an aspect of information that depends on the situation
Real-time information – Immediate, up-to-date information
Real-time system – Provides real-time information in response to requests
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Information Quality
Business decisions are only as good as the quality of the information used to make the decisions
You never want to find yourself using technology to help you make a bad decision faster
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Information Quality
Characteristics of High-quality Information
Accurate
Complete
Consistent
Unique
Timely
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Information Quality
Low Quality Information Example
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Understanding the Costs of Using Low-Quality Information
The four primary sources of low quality information include
Customers intentionally enter inaccurate information to protect their privacy
Different entry standards and formats
Operators enter abbreviated or erroneous information by accident or to save time
Third party and external information contains inconsistencies, inaccuracies, and errors
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Understanding the Costs of Using Low-Quality Information
Potential business effects resulting from low quality information include
Inability to accurately track customers
Difficulty identifying valuable customers
Inability to identify selling opportunities
Marketing to nonexistent customers
Difficulty tracking revenue
Inability to build strong customer relationships
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Understanding the Benefits of Good Information
High quality information can significantly improve the chances of making a good decision
Good decisions can directly impact an organization's bottom line
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STORING INFORMATION IN A RELATIONAL DATABASE
Information is everywhere in an organization
Information is stored in databases
Database – maintains information about various types of objects (inventory), events (transactions), people (employees), and places (warehouses)
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STORING INFORMATION IN A RELATIONAL DATABASE
Database management systems (DBMS) –Allows users to create, read, update, and delete data in a relational database
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STORING INFORMATION IN A RELATIONAL DATABASE
Data element – The smallest or basic unit of information
Data model – Logical data structures that detail the relationships among data elements using graphics or pictures
Metadata –Details about data
Data dictionary – Compiles all of the metadata about the data elements in the data model
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Storing Data Elements in Entities and Attributes
Entity – A person, place, thing, transaction, or event about which information is stored
The rows in a table contain entities
Attribute (field, column) – The data elements associated with an entity
The columns in each table contain the attributes
Record – A collection of related data elements
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Creating Relationships Through Keys
Primary keys and foreign keys identify the various entities (tables) in the database
Primary key – A field (or group of fields) that uniquely identifies a given entity in a table
Foreign key – A primary key of one table that appears an attribute in another table and acts to provide a logical relationship among the two tables
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USING A RELATIONAL DATABASE FOR BUSINESS ADVANTAGES
Database advantages from a business perspective include
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Increased Flexibility
A well-designed database should
Handle changes quickly and easily
Provide users with different views
Have only one physical view
Physical view – Deals with the physical storage of information on a storage device
Have multiple logical views
Logical view – Focuses on how individual users logically access information to meet their own particular business needs
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Increased Scalability and Performance
A database must scale to meet increased demand, while maintaining acceptable performance levels
Scalability – Refers to how well a system can adapt to increased demands
Performance – Measures how quickly a system performs a certain process or transaction
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Reduced Information Redundancy
Databases reduce information redundancy
Information redundancy – The duplication of data or storing the same information in multiple places
Inconsistency is one of the primary problems with redundant information
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Increase Information Integrity (Quality)
Information integrity – measures the quality of information
Integrity constraint – rules that help ensure the quality of information
Relational integrity constraint
Business-critical integrity constraint
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Increased Information Security
Information is an organizational asset and must be protected
Databases offer several security features
Password – Provides authentication of the user
Access level – Determines who has access to the different types of information
Access control – Determines types of user access, such as read-only access
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DRIVING WEBSITES WITH DATA
Data-driven websites – An interactive website kept constantly updated and relevant to the needs of its customers using a database
Content creator
Content editor
Static information
Dynamic information
Dynamic catalog
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DRIVING WEBSITES WITH DATA
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DRIVING WEBSITES WITH DATA
Data-driven website advantages
Easy to manage content
Easy to store large amounts of data
Easy to eliminate human errors
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DRIVING WEBSITES WITH DATA
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SECTION 6.2
BUSINESS INTELLIGENCE
©The McGraw-Hill Companies, All Rights Reserved
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LEARNING OUTCOMES
Identify the advantages of using business intelligence to support managerial decision making
Define data warehousing and data marts and explain how they support business decisions
Describe the three organizational methods for analyzing big data
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SUPPORTING DECISIONS WITH BUSINESS INTELLIGENCE
Organizational data is difficult to access
Organizational data contains structured data in database
Organizational data contains unstructured data such as voice mail, phone calls, text messages, and video clips
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The Problem: Data Rich, Information Poor
Businesses face a data explosion as digital images, email in-boxes, and broadband connections doubles by 2010
The amount of data generated is doubling every year
Some believe it will soon double monthly
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The Solution: Business Intelligence
Improving the quality of business decisions has a direct impact on costs and revenue
BI enables business users to receive data for analysis that is:
Reliable
Consistent
Understandable
Easily manipulated
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The Solution: Business Intelligence
BI Can Answer Tough Questions
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THE BUSINESS BENEFITS OF DATA WAREHOUSING
Data warehouses extend the transformation of data into information
In the 1990’s executives became less concerned with the day-to-day business operations and more concerned with overall business functions
The data warehouse provided the ability to support decision making without disrupting the day-to-day operations
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THE BUSINESS BENEFITS OF DATA WAREHOUSING
Data warehouse – A logical collection of information – gathered from many different operational databases – that supports business analysis activities and decision-making tasks
The primary purpose of a data warehouse is to aggregate information throughout an organization into a single repository for decision-making purposes
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THE BUSINESS BENEFITS OF DATA WAREHOUSING
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THE BUSINESS BENEFITS OF DATA WAREHOUSING
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PERFORMING BUSINESS ANALYSIS WITH DATA MARTS
Extraction, transformation, and loading (ETL) – A process that extracts information from internal and external databases, transforms the information using a common set of enterprise definitions, and loads the information into a data warehouse
Data mart – Contains a subset of data warehouse information
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PERFORMING BUSINESS ANALYSIS WITH DATA MARTS
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Multidimensional Analysis
Databases contain information in a series of two-dimensional tables
In a data warehouse and data mart, information is multidimensional, it contains layers of columns and rows
Dimension – A particular attribute of information
Cube – Common term for the representation of multidimensional information
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Multidimensional Analysis
Cubes of Information
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Information Cleansing or Scrubbing
An organization must maintain high-quality data in the data warehouse
Information cleansing or scrubbing – A process that weeds out and fixes or discards inconsistent, incorrect, or incomplete information
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Information Cleansing or Scrubbing
Contact Information in an Operational System
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Information Cleansing or Scrubbing
Standardizing Customer Name from Operational Systems
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Information Cleansing or Scrubbing
Information Cleansing Example
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Information Cleansing or Scrubbing
Cost of Accurate and Complete Information
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THE POWER OF BIG DATA ANALYTICS
Three organizational methods for analyzing big data
Data mining
Big data analytics
Data visualization
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Data Mining
Data mining – The process of analyzing data to extract information not offered by the raw data alone
Data-mining tools – use a variety of techniques to find patterns and relationships in large volumes of information
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Data Mining
Data mining analysis methods
Prediction
Optimization
Forecasting
Regression
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Data Mining
Data Mining Techniques
Classification
Estimation
Affinity grouping
Clustering
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Big Data Analytics
Structured data – Contains a defined length, type, and format and includes numbers, dates, or strings
Machine-generated data
Human-generated data
Unstructured data – Not defined, does not follow a specified format, and is typically freeform text such as emails, Twitter tweets, text messages
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Big Data Analytics
Big data - A collection of large, complex data sets, including structured and unstructured data, which cannot be analyzed using traditional database methods and tools and includes the following four common characteristics
Variety
Veracity
Volume
Velocity
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Data Visualization
Infographics
Analysis paralysis
Data visualization
Data visualization tools
Business intelligence dashboards
Data artist
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LEARNING OUTCOME REVIEW
Now that you have finished the chapter please review the learning outcomes in your text
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