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Logical Data Model

A model that describes the data in as much detail as possible, without regard to how they will be physically implemented in the database.

Categoryai

Overview

A Logical Data Model (LDM) defines the structure of the data elements and sets the relationships between them. It adds more information to the conceptual model but remains independent of the physical database technology.

Components

  • Entities and Attributes
  • Primary Keys
  • Foreign Keys
  • Relationships (1:1, 1:N, M:N)

Related Terms

Data ModelingConceptual Data ModelPhysical Data Model