NSOV-2 Service Definitions
The NSOV-2 Service Definitions subview is intended to assist in delineating and defining services in order to understand the operational domain in terms of services supporting operational activities.
This subview provides a list of service definitions which correspond to elements captured in other subviews such as:<
• NOV-4 (users/ service consumers),
• NOV-7 (information objects),
• and NOV-3 (constraints on information exchanges).
Service definitions can be verified by checking if information needlines (NOV-2), information exchanges (NOV-3) and operational activities (NOV-5) are adequately supported.
Service definition includes, among other things, the definition of ports and interfaces, and connecting the interfaces to data models. The services in this subview are referenced in NSV-12.
The main entry point of the NSOV-2 view is the Service Definition folder. This concept matches the definition of the exchange protocol that must be fulfilled to benefit from the exposed services.
An exchange protocol defines how a consumer and a provider must behave in order to carry out a particular service. These exchange protocols are connected to the service points. The service that displays this service point will play the role of the provider in the exchange protocol.Service definitions can be created:
• directly in the Service Definition folder,
• when creating interactions in a service structure diagram.
To create a service definition from the Service Definition folder:
1. In the NAF navigation tree, click Service-Oriented Views > NSOV-2.
2. Right-click the "All Service Definitions" folder and select New > Service Definition.
3. In the dialog box that appears enter the name of the service definition.
4. Click OK.
The new service definition appears.