A common data model contains a uniform set of metadata, allowing data and its meaning to be shared across applications. In addition to the uniform metadata, a common data model includes a set of standardized, extensible data schemas that include items such as entities, attributes, semantic metadata, and relationships.

What is the most common Data Model?

The most common model, the relational model sorts data into tables, also known as relations, each of which consists of columns and rows.

What is the purpose of a common Data Model entity?

The Common Data Model (CDM) is a standard and extensible collection of schemas (entities, attributes, relationships) that represents business concepts and activities with well-defined semantics, to facilitate data interoperability.