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Logical schema

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Title: Logical schema  
Author: World Heritage Encyclopedia
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Subject: Data modeling, Physical schema, Meta noise, Star schema, Logical data model
Collection: Data Modeling
Publisher: World Heritage Encyclopedia

Logical schema

A logical schema is a data model of a specific problem domain expressed in terms of a particular data management technology.

Without being specific to a particular database management product, it is in terms of either relational tables and columns, object-oriented classes, or XML tags. This is as opposed to a physical data model, which describes the particular physical mechanisms used to capture data in a storage medium.

The next step in creating a database, after the logical schema is produced, is to create the physical schema.

See also

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