Entity Relationship Model

Logical Data Model

Logical Data Model is a System Analytical Tool in the Entity Relationship Model that used to define a Business Process Flow and Logical Database Structure with Entities, Relationships, Attributes and Domain Rules. Logical Data Model is an extension of Conceptual Data Model that helps to design Physical Database Structure.

Logical Data Model is an independent of Database Technology that helps to design specific Physical Database Structure. Logical Data Model is used to analyze and improve Business Process Flow and Optimize Database Structure that helps to Technical and Non-Technical People in the Organization.

Logical Data Model must examine with Normalization Rules that helps to authenticate the Relational Database Structure.

The following Logical Data Model is defines an "Online Sales Management System".

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