Business functions are performed by organizational units. Some of the functions and services performed by those organizational units will be supported by IT systems. The mapping of the Application Component-Organization Unit relationship is an important step as it enables the

following to take place:

·Assign usage of applications to the organization units that perform business functions

·Understand the application support requirements of the business services and processes carried out by an organization unit

·Support the gap analysis and determine whether any of the applications are missing and as a result need to be created

·Define the application set used by a particular organization unit

HOPEX TOGAF.