The grammars used to generate entity-relationship diagrams and object-oriented conceptual models, for example, provide separate constructs for representing entities and attributes. The grammars used ...

Similarly, specialised notations such as the Feynmann notation or the process flow diagrams did a lot for the adoption of concepts in their own fields.

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 ...

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 ...