Chapter 4: Managing Information Resources with Databases Copyright © 2013 Pearson Education, Inc. publishing as Prentice Hall Chapter 4 - 1
Chapter 4: Managing Information Resources with Databases Copyright © 2013 Pearson Education, Inc. publishing as Prentice Hall Chapter 4 - 1.
Dec 22, 2015
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Chapter 4:Managing Information Resources
with Databases
Copyright © 2013 Pearson Education, Inc. publishing as Prentice Hall Chapter 4 - 1
Learning objectives
1. Information resources
2. Database advantages
3. Relational database
4. Master data management
5. Data warehouse
6. Information management
Copyright © 2013 Pearson Education, Inc. publishing as Prentice Hall Chapter 4 - 2
YouTube
• Founded in 2005
• Goal to create worldwide community
• Database of videos
• Within one year, 100 million videos per day
Copyright © 2013 Pearson Education, Inc. publishing as Prentice Hall Chapter 4 - 3
• Structured information
• Unstructured information
• Semi-structured information
• Metadata
Copyright © 2013 Pearson Education, Inc. publishing as Prentice Hall Chapter 4 - 4
Information resources
• Accuracy
• Precision
• Completeness
• Consistency
• Timeliness
• Bias
• Duplication
Copyright © 2013 Pearson Education, Inc. publishing as Prentice Hall Chapter 4 - 5
Quality of information
• Record• Field• Table
Copyright © 2013 Pearson Education, Inc. publishing as Prentice Hall Chapter 4 - 6
Managing information
• Redundancy and inconsistency
• Lack of integration
• Inconsistent definitions
• Dependence
Copyright © 2013 Pearson Education, Inc. publishing as Prentice Hall Chapter 4 - 7
File processing systems
• Reduced redundancy
• Integrity and accuracy
• Ability to adapt to changes
• Performance and scalability
• Security
Copyright © 2013 Pearson Education, Inc. publishing as Prentice Hall Chapter 4 - 8
Databases
• One to one (1:1)
• One to many (1:M)
• Many to many (M:M)
Copyright © 2013 Pearson Education, Inc. publishing as Prentice Hall Chapter 4 - 9
Database architecture
• Tables of records
• Link field in one
table to field in
another table
• Separates data from
paths to retrieve
data
Copyright © 2013 Pearson Education, Inc. publishing as Prentice Hall Chapter 4 - 10
Relational database
• Entities and
attributes
• Primary key
• Normalization
Copyright © 2013 Pearson Education, Inc. publishing as Prentice Hall Chapter 4 - 11
Data model (1:2)
• Relationships and foreign keys• Complex relationships
Copyright © 2013 Pearson Education, Inc. publishing as Prentice Hall Chapter 4 - 12
Data model (2:2)
• Structured query language (SQL)
• Interactive voice response (IVR)
• Natural language interfaces
Copyright © 2013 Pearson Education, Inc. publishing as Prentice Hall Chapter 4 - 13
Retrieving information
Copyright © 2013 Pearson Education, Inc. publishing as Prentice Hall Chapter 4 - 14
Managing the database
• Performance tuning
and scalability
• Integrity, security,
and recovery
• Documentation
Multiple databases
• Integration
challenges
• Shadow systems
• Master data
management
• Data stewards
Copyright © 2013 Pearson Education, Inc. publishing as Prentice Hall Chapter 4 - 15
Data warehouses
• Building data warehouses• Extract, transform, and load (ETL)• Data mining
Copyright © 2013 Pearson Education, Inc. publishing as Prentice Hall Chapter 4 - 16
Human element
• Ownership issues
• Databases without boundaries
• Stakeholders
Copyright © 2013 Pearson Education, Inc. publishing as Prentice Hall Chapter 4 - 17
Summary
1. Information resources
2. Database advantages
3. Relational database
4. Master data management
5. Data warehouse
6. Information management
Copyright © 2013 Pearson Education, Inc. publishing as Prentice Hall Chapter 4 - 18
• Video surveillance
• Automatic plate
number recognition
• Database
• Queries and data
mining
• Privacy
Copyright © 2013 Pearson Education, Inc. publishing as Prentice Hall Chapter 4 - 19
UK police case
Colgate Palmolive case
• $15 billion sales, 70 countries
• Consistency in products and data
• Colgate Business Planning (CBP)—profit,
loss and ROI by product, region, and retailer
• Reinvested $100 million in most profitable
promotions, goal $300 million
Copyright © 2013 Pearson Education, Inc. publishing as Prentice Hall Chapter 4 - 20
Copyright © 2013 Pearson Education, Inc. publishing as Prentice Hall Chapter 4 - 21
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