Relationships are services used to model and maintain associations between business objects and other data.
Relationships are supporting services in IBM® WebSphere® ESB applications that establish an association between data from two or more data types.
A relationship is an association between two or more data entities in the business integration system. Most often, these entities are business objects. Relationships are used to transform data that is equivalent across business objects but is represented differently.
In WebSphere ESB, relationship manager is a tool for manually manipulating relationship data to correct errors found in automated relationship management or to provide more complete relationship information. In particular, it provides a facility for retrieving and modifying relationship instance data. Relationship manager allows you to configure, query, view, and perform operations on relationship runtime data, including participants and their data. You create relationship definitions with relationship designer. At run time, instances of the relationships are populated with the data that associates information from different applications.