Please note : This help page is not for the latest version of Enterprise Architect. The latest help can be found here.
Logical Data Model
Logical data models help to define the detailed structure of the data elements in a system and the relationships between data elements. They refine the data elements introduced by a Conceptual data model and form the basis of the Physical data model. In Enterprise Architect, a Logical data model is typically represented using the UML Class notation.
This is a simple example of a Logical data model:
Note that the data elements 'Customers' and 'Customers Addresses' contain UML attributes; the names and generic data types to remain platform-independent. Platform-specific data types and other meta-data that relate to a specific DBMS implementation are defined by the Physical data model.