A logical data model is the next level of abstraction, as it adds more detail and structure to the conceptual data model. It specifies the data types, domains, constraints, keys, indexes, and ...

A logical data model shows the specific properties, constraints, and keys of your entities, attributes, and relationships, using a notation such as enhanced entity-relationship (EER) diagrams.

An enterprise conceptual data model is often seen as a high mountain to be climbed, a journey that will last a lifetime. People have visions of 10 feet or more of wall in the corporate offices ...