Feb 05: Enhanced ER Model (EER)

Learning Objectives

After today's class, you should be able to:

• Explain the following concepts: weak entity, ternary relationship, specialization.
• Answer questions that require interpreting EER diagrams.

Lesson Outline

Lecture Slides and activities:

EER Models

• [15 min] Group Activity: Abstract ER Model, Part 2 *
• [15 min] Weak entities, ternary and recursive relationships

• [15 min] Group Activity: Abstract ER Model, Part 3

• [15 min] (EER) Inheritance and specialization hierarchies

• [20 min] Group Activity: Reading EER Diagrams

Your To-Do List

• Finish reading sections 2.1 and 2.2 in the book
• Complete HW2 (due Monday)