Describing a service interface
A service interface can be described by service operations or service interfaces that represent information exchanges between architecture components.
A Service Interface is a template of a contract between entities (organizational, IT …). The contract is described by available operations which can be triggered trough messages exchanged by roles (vendor, buyer..).A service operation use represents the usage of a service operation in an service interface.A service interface use is associated to a service interface. It enables representation of complex exchanges.To describe that a service operation is used by a service interface:
1. Open the service operation page of the service interface.
2. Click the New button.
A selection dialog box opens.
3. Select used operation service and click OK.
The creation dialog box opens.
4. Click the arrow at the right of the Specification box.
5. Select List in the drop-down list and select the service operation to be associated with the service operation you are using.
The name of the service operation appears in the Specification field.
6. In the From field, select the described service operation role connected to the Invoker role of the service operation used.
7. In the To field, select the service operation role connected to the Invoked role of the service operation used.
8. Click OK.
You can associate several service operations to the service interface.9. Click OK.