Service Specifications Layer

The Service Specifications layer describes Services independently of how they are implemented or used. The purpose of these views is to establish a library of standard services that support building architectures based on the concept of a service-oriented architecture. The Service Specifications layer is a description of services needed to directly support the operational domain.

A service is understood in its broadest sense as a unit of work through which a provider provides a useful result to a consumer.

The Service Specifications layer focuses strictly on identifying and describing services and does not specify their physical implementation (see Physical Resource Specifications layer). The Service Specifications layer also supports the description of service taxonomies, interfaces, policy and behaviour.

• S1 – Service Taxonomy

• S3 – Service Interfaces
• S4 – Service Functions
• S5 – Service States
• S6 – Service Interactions
• S7 – Service Interface Parameters
• S8 – Service Policy
• Sr – Service Roadmap