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What Is A Logical Data Model And Logical Data Modeling? |
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Answer» A LOGICAL data model is the version of a data model that REPRESENTS the business requirements (entire or part of an organization). This is the actual implementation and EXTENSION of a conceptual data model. Logical Data MODELS CONTAIN Entity, Attributes, Super Type, Sub Type, Primary Key, Alternate Key, Inversion Key Entry, Rule, Relationship, Definition etc. The approach by which logical data models are created is called as logical data modeling. A logical data model is the version of a data model that represents the business requirements (entire or part of an organization). This is the actual implementation and extension of a conceptual data model. Logical Data Models contain Entity, Attributes, Super Type, Sub Type, Primary Key, Alternate Key, Inversion Key Entry, Rule, Relationship, Definition etc. The approach by which logical data models are created is called as logical data modeling. |
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