1. Modeling Relationships
2. Definition of Hierarchy
3. Definition of Relationship
4. Relationships Documentation
5. Some Relationships Suggest New Entities
6. Generalization & Specialization
7. An Example of Generalization & Specialization
8. Hiearchy May Simplify Data Structures
9. Rules for Identifying Hierarchies
10. Steps for Identifying a Hierarchy
11. Advantages of Hierarchies
12. An example
13. Many to Many Relationships
14. Another Example
15. New Requirements
16. Revised Information Model
17. Take Home Lessons