Logical Data Model

Logical Data Model - A Logical Data Model fills in the gap between a Conceptual Data Model and Physical Data Model. While Conceptual Data Models are completely devoid of database-level information, a Logical Data Model stores generic characteristics (such as indexes and foreign keys) without adding anything specific to a single database management system (DBMS). Physical Data Models translate information from a Logical Data Model to designs that are specific to a certain database management system (DBMS).

[Category=Data Governance ]

Source: The Data Governance Institute, 15 December 2009 10:14:49, http://www.datagovernance.com/glossary-governance/

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Logical Data Model - An abstract formal representation of the categories of data and their relationships in the form of a diagram, such as an entity-relationship diagram. A logical data model is process independent, which means that it is fully normalized, and therefore does not represent a process dependent (e.g. access-path) database schema.

[Category=Data Cleansing ]

Source: X4DB, 22 May 2010 10:54:54, http://www.x4db.com/glossary.html

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Logical Data Model - Actual implementation of a conceptual module in a database. It may take multiple logical data models to implement one conceptual data model. An LDM is a representation of business concepts laid out in a visual format that clearly shows these concepts and their various relationships.

[Category=Information Management ]

Source: Information-Management.com, 26 June 2010 09:34:02, http://www.information-management.com/glossary/l.html

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Logical Data Model - (1) A data model that represents the normalized design of data needed to support an information system. Data are drawn from the common data model and normalized to support the design of a specific information system. (2) Actual implementation of a conceptual module in a database. It may take multiple logical data models to implement one conceptual data model.

[Category=Data Warehousing ]

Source: Sun.com, 30 July 2010 09:08:15, http://www.sun.com/third-party/dw/brochures/67198.Acrobat.pdf

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Logical Data Model - (1) A data model that represents the normalized design of data needed to support an information system. Data are drawn from the common data model and normalized to support the design of a specific information system.

(2) Actual implementation of a conceptual module in a database. It may take multiple logical data models to implement one conceptual data model.

[Category=Data Warehousing ]

Source: Aexis Business Intelligence, 17 December 2010 09:45:14, http://www.aexis.eu/DataWarehouse-Glossary/