Week1 - Data Modeling, Entity Relationship Model / Analyze

Entity Relationship Diagram Questions

1. Look at the following four block diagram for mapping of cardinalities and label them appropriately.

1. Diagram 1

(a) Generalization

2. Diagram 2

(b) Specialization

3. Diagram 3

(c) Aggregation

2. Look at the following four block diagram for mapping of cardinalities and label them appropriately.

1. A

(a) One-to-one

2. B

(b) One-to-many

3. C

(c) Many-to-one

4. D

(d) Many-to-many