E/R Diagrams

An Entity Relationship (ER) Diagram is a type of flowchart that illustrates how “entities” such as people, objects or concepts relate to each other within a system. ER Diagrams are most often used to design or debug relational databases.

2 flashcards · Computer Science · by lakesare

1. What does ER diagram stand for?

   Entity Relationship Diagram

2. What does this notation mean Single-line border Double-line border

   Single-line border: strong entities Double-line border: weak entities (depends on the strong entity, doesn't need to exist on its own)