Logical Data Modeling - Logical data model

Data System Architecture


A logical data model is a data model that shows the organization of data without indicating how it is physically stored, created, or manipulated (it this is not a physical data model).

It just describe the real world with logical concept such as:

It models:

  • data
  • and methods (behavior, procedures) of each entity.

Logical data model should be understand by users and developers in order to share a common single view of a system.

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Without Data Model
Logical Data Modeling - Data Model

A data model is an (abstract) model that describes how data are represented and accessed. Data models formally define entity and relationships among entities for a domain of interest. schema A data...

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