In the subject area structure, data is organized around subject areas and aggregated into subject area groups. For example, a subject area can be a Person. You configure relationships within subject areas that are based on the relationships that exist between base objects in the Hub Store. You configure lookups in a physical lookup base object table, and

Data Director

uses metadata or configuration files to populate the lookup values. For information about subject area configuration, see the

Multidomain MDM Data Director Implementation Guide

.

In the business entity data structure, data is organized around business entities. A business entity is a tree of nodes, where each node corresponds to a base object table in the MDM Hub. Each field corresponds to a column of a base object table in the MDM Hub. A business entity is based upon a root node. The root node is synonymous with the business entity. For example, a business entity with a Person root node is considered to be a Person business entity.

After the root node is established, you can use the Provisioning tool to create child nodes that have a one-to-one or one-to-many relationship with their parent nodes. You can also use the Provisioning tool to configure reference entities, which are business entities that are associated with lookup base objects. For information about the Provisioning tool, see the

Multidomain MDM Provisioning Tool Guide

.