The lines between entities within an Entity-Relationship Diagram [ERD] represent an interdependency between the involved entities. In a normalized designed, this interdependency is both semantic and ...

Higher Design Relationships and entity relationship diagrams Designing queries and establishing a data dictionary are important and attributes and relationships should be clearly defined.

Logical data models, where an entity relationship diagram (ERD) provides a picture of different data categories and how they relate to one another, offer a strong underpinning for data governance.

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.

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 ...