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1.5.1 Models

The Logical Modeler enables you to create data models based on the Chen E-R methodology. As such, a data model contains entities, elements and relationships. These three types of information combine to create a picture of the data that your business uses.

Once described, a data model can be built into a physical database. The physical definitions are stored in the LANSA Repository. The data model can be redesigned and refined over many build cycles, until a physical database is generated that matches the complete business requirements.

Data Models are stored as XML files and Visio documents, independently of the LANSA Repository. The models can be easily copied, moved or shared with other users.

For more details, refer to 3. Models.