1. Chapter 4 The Semantic Object Model David M. Kroenke Database Processing © 2000 Prentice Hall

2. Chapter 4 © 2000 Prentice Hall Semantic Objects “a named collection of attributes that sufficiently describes a distinct entity” Student Customer Employee Page 74

3. Attributes “define the characteristics of semantic objects” Page 75 Figure 4-2a © 2000 Prentice Hall

4. Attribute Cardinality “indicates the minimum or maximum number of instances of the attribute that must exist in order for the object to be valid” Page 76 Figure 4-2b © 2000 Prentice Hall

5. Object Instances “the occurrence of a particular semantic object” Page 77 Figure 4-3 © 2000 Prentice Hall

6. Chapter 4 © 2000 Prentice Hall Object Identifier “one or more object attributes that the users employ to identify object instances” Example: CustomerID for Customer Page 78

7. Chapter 4 © 2000 Prentice Hall Domain “a description of an attribute’s possible values” Page 78

8. Semantic Object View “the portion of an object that is visible to a particular application; view” Page 79 Figure 4-4 © 2000 Prentice Hall

9. Chapter 4 © 2000 Prentice Hall Highline University Administration Database Objects: –College –Department –Professor –Student Page 80

10. Semantic Object Diagrams Page 85 Figure 4-13 (1) © 2000 Prentice Hall

11. Semantic Object Diagrams Page 85 Figure 4-13 (2) © 2000 Prentice Hall

12. Semantic Object Diagrams Page 85 Figure 4-13 (3) © 2000 Prentice Hall

13. Semantic Object Diagrams Page 85 Figure 4-13 (4) © 2000 Prentice Hall

14. Semantic Object Specifications Page 86 Figure 4-14 (1) © 2000 Prentice Hall

15. Semantic Object Specifications Page 86 Figure 4-14 (2) © 2000 Prentice Hall

16. Semantic Object Specifications Page 86 Figure 4-14 (3) © 2000 Prentice Hall

17. Semantic Object Specifications Page 86 Figure 4-14 (4) © 2000 Prentice Hall

18. Chapter 4 © 2000 Prentice Hall Domain Types Formula Group Simple Semantic Object Page 87

19. Domain Specifications Page 87 Figure 4-14b © 2000 Prentice Hall

20. Simple Objects “contain only single-value, nonobject attributes” Page 89 Figure 4-15 © 2000 Prentice Hall

21. Composite Objects “contain one or more multi-value, nonobject attributes” Page 89 Figure 4-16 © 2000 Prentice Hall

22. Composite Object with Nested Groups Page 89 Figure 4-18 © 2000 Prentice Hall

23. Hybrid Objects “combinations of objects of two types” Page 89 Figure 4-22 © 2000 Prentice Hall

24. Association Objects “relate two (or more) objects and store data that are peculiar to that relationship” Page 99 Figure 4-26b © 2000 Prentice Hall

25. Association Object Example Page 100 Figure 4-27b © 2000 Prentice Hall

26. Subtype Object Page 101 Figure 4-28 © 2000 Prentice Hall

27. Archetype/Version Object Page 104 Figure 4-31 © 2000 Prentice Hall

28. Semantic vs. E-R Model Page 105 Figure 4-33 © 2000 Prentice Hall

29. Semantic vs. E-R Model Page 105 Figure 4-34 © 2000 Prentice Hall