Enhanced entity relationship diagram

Visão geral

Metas

Draw an ERD for a given problem

objetivos de aprendizado

- Understand use of supertype/subtype relationships - Use specialization and generalization techniques - Specify completeness and disjointness constraints - Develop supertype/subtype hierarchies for realistic business situations

Contexto

This is addressed for students who want to develop an enhanced ERD for the system. Before learning this, students must have background knowledge on logical database design and be able to draw an ERD