An entity relationship diagram is a model which can represent a part of reality needed for the system and also the database structure. Just like every model it represents a simplification of the real ...

Entity-Relationship-Diagram 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.

It is necessary to include relationship descriptions like this when creating an entity relationship diagram. If we added a third entity (Sport), we would have another relationship to add.

Spread the loveAn entity-relationship diagram (ERD) is a visual representation of data that describes the relationships among entities in a database. It is used in database design to illustrate the ...

In building a logical data model, some entities are considered strong, other entities are considered weak. Strong entities are the most foundational elements within a nascent Entity-Relationship ...

National 5 Design Relationships and entity relationship diagrams Designing queries and establishing a data dictionary are important. Decisions should be informed by the Data Protection Act.

Occasionally one sees an entity-relationship diagram (ERD) having an unusual characteristic. The unusual element is an entity (or more than one) that seems to have a relationship with every other ...