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COV ITRM Glossary


Entity Relationship Diagram (ERD)


An abstract representation of structured data, which produces a conceptual data model of a system and its requirements. The actual model is frequently called an "Entity-Relationship Model" because it depicts the entities and relationships existing in the data. An ERD (the diagram of the model) may also be referred to as an Entity Relationship Model (ERM) or a Logical Data Model (LDM).

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