1. Chapter 1: The Database Environment

2.
DATA
Database

3. Database INFORMATION 1258-3696-5571-0014 MasterCard 07/04
Visa Card
O1/02
Discover
07/02
Database
INFORMATION

4. Metadata Database Field Name: MasterCardNum Field Type: Text
Field Size: 19
Field Description: Unique identifier for each MasterCard Customer
Database

5. Entities Database Customer Product Employee Invoice Department
Entities Become Tables
Database

6. Enterprise Data Model Database Customer Product Places Has
Is Placed by
Order
Inventory
Contains
Is Contained In

7. Customer Database LastName FirstName Address City State Zip
Attributes are field names
Database

8. Homework Database Zero Tolerance Policy Lab Assignment
Lecture Assignment
Database

9. Chapter 2: Database Development Process

10. Enterprise Data Model Database General Information
Overall Picture of Organization
Top-Down Approach
Database

11. Information Systems Architecture
Six key components:
Data
Processes
Network
People
Events / point of time
Reasons
Database

12. Information Engineering
Four Main Steps:
Planning
Analysis
Design
Implementation
Database

13. Information Engineering Planning Phases
3 Steps:
Identify strategic planning factors
Identify corporate planning objects
Develop enterprise model
Database

14. Identify Strategic Planning Factors
Goals
Mission statement
Corporate Vision
Critical success factors
Problem areas
Database

15. Identify Corporate Planning Objects
Organizational units
Organizational locations
Business functions
Entity types
Information systems
Database

16. Develop Enterprise Model
Functional Decomposition
Entity-relationship diagram
Planning Matrix (traceable information)
Database

17. SDLC Database Project Identification & Selection
Project Initiation & Planning
Analysis
Logical Design
Physical Design
Implementation
Maintenance
Database

18. SDLC
Pretty
Paula
Always
Lets
People
Imitate Me
Database

19. Chapter 3: Entity-Relationship Model
Database

20. Data Modeling Importance
3 Reasons:
Data Integrity
Data is central role of Information System
Stable information
Database

21. Entity Database Name of database table All Caps In rectangle Noun
Singular
Database
ENTITY

22. Weak Entity
Database
EMPLOYEE
Has
DEPENDENT

23. Relationship Database Diamond Verb Shows action
Capital Letter followed by lower case
Must connect to Entity
Relationship
Database

24. Relationship Cardinality
Mandatory One
Database
Mandatory Many
Optional One
Optional Many

25. Relationship Degrees
Binary
Unary
Database
Ternary

26. Attribute Database Characteristic of entity Oval Shape Singular
Capital Letter followed by lower case
Primary Key is underlined
Field names of table
Database
Attribute

27. Attribute Types Database Attribute Multivalued Attribute
Derived Attribute

28. Composite Attribute
Address
Database
EmployeeID
EmployeeName
EMPLOYEE

29. Cardinality Constraints
Minimum cardinality
-smallest amount of relationships between the two entities
Maximum cardinality
-largest amount of relationships between the two entities
Database

30. Chapter 4: Enhanced ER Model
Database

31. Subtypes
UNDERGRADUATE
Database d
FRESHMEN
JUNIOR
SOPHOMORE
SENIOR

32. Generalization Database Bottom-Up Process
Take a general entity with common attributes
Define specific attributes for each subtype
Database

33. Specialization Database Top-Down Process
Take a very specialized entity with all of its attributes
Define distinct attributes for each subtype
Database

34. Completeness Constraints
Total Specialization
Double line connecting entity to subtype circle
Either one subtype or the other subtype
Partial Specialization
Single line connecting entity to subtype circle
Partial overlap but not completely the same subtypes
Database

35. Disjointness Constraints
Disjoint Rule
Either an entity is one type or another subtype at this point in time
Place a “d” in subtype circle
Overlap Rule
An entity can be both subtypes in one point in time
Place a “o” in subtype circle
Database

36. Subtype Discriminator
An attribute of an entity which defines which subtype this instance belongs to
Place a definition beside subtype circle
Place discriminator in quotation marks above each subtype relationship
Database

37. Root Database Main entity at the top of a hierarchy For example:
Page 140-PATIENT
Page 141-EMPLOYEE
Page 142-PART
Page 144-PERSON
Database

38. Business Rules Database
Unique business rules which apply to a specific organizations’ database
Two Types:
Structural constraints
Operational constraints
Database

39. Structural Constraints
Derived Facts
Defined in repository
Built into the database
Example Page 149
ER Diagram similar to your project
Database

40. Operational Constraints
Collection of rules inside the repository
One relationship constricts the actions of another relationship
Database R

41. Database