Services and interconnections
The MEGA Suite for DoDAF 2 approach is based on the following MEGA concepts:
• Interaction, that represents the requests for services between the components.
An interaction represents a contract established in a specific context between autonomous entities that are internal or external to an enterprise. These entities can be enterprise org-units, applications, activities or processes, as well as external org-units. The content of this contract is described by an exchange contract.
• Service Definition, that describes the content of an interaction.
A service definition is a model of a contract between organizational entities. This contract is described by exchanges between an initiator role and one or several contributor roles.
In the MEGA Suite for DoDAF 2 navigation tree, the Services Viewpoint is splitted into:
• the Operational Service Viewpoint,
• the System Service Viewpoint.