Using Functionalities with HOPEX IT Architecture
A functionality is an aptitude expected from an equipment.

A functionality is a service required to perform a work. This functionality is generally necessary within an activity in order to execute a specific operation. If it is a software functionality, it can be provided by an application.
A functionality map describes all the functionalities the enterprise is able to cover for its internal needs or for meeting the needs of its clients.

A functionality map is a set of functionalities with their dependencies that, jointly, define the scope of a hardware or software architecture.
Example of a functionality map