A conceptual data model or conceptual schema is a high ... A physical data model or physical schema is a representation of an implementation design; it defines data abstraction within physical ...

Data modeling is the procedure of crafting a visual representation of an entire information ... modeling and design tool that enables you to create high-quality conceptual, logical and physical data ...

The Open Systems Interconnect (OSI) model is a conceptual framework that describes ... Layer represents the area that is independent of data representation at the application layer.

A data model is a representation — in diagrammatic ... These models can be either conceptual, logical or physical. A good data model includes primary and foreign keys, which allow you to ...