Service

{To do.}

A Service matches a Capability with a need of one or many Consumers. It typically has one or many Providers.

It would generally have Service Level Agreement to which it have to comply.

It would have a Service Contract specified which would be enforced by one or many Service Policies (Enforcing Assertions and Contraints) on the services.

Also made up of:
Business Services
Runtime Executable Services
Infrastructure Services

Related: Service Definition