This week’s content presents a balanced view of Entity Relationship Modeling (ERM). On one hand, a pragmatic focus on the aspects of the Entity Relationship Diagram (ERD) that have a direct impact on the design and implementation of the database must be considered. On the other hand, properly documenting the business needs that the database must support is equally important.
Respond to the following in a minimum of 175 words:
- Compare Crow’s Foot and Chen notation ERDs.
- Discuss some of the differences, strengths, and weaknesses of the two notations.