BPM - Business Process Analysis > Conversations > Managing Composite Conversations > Accessing a Service Interface from a Composite Conversation
Accessing a Service Interface from a Composite Conversation
A service interface is described by a composite conversation that represents an information exchange channel 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 composite conversation is described by an service contract. This service interface contains service operations or sub-service interfaces.
To create a composite conversation:
1. In the diagram insert toolbar, click the Composite Conversation button.
2. Draw a link between the two entities in communication.
3. In the creation window, precise the name of the conversation and select the service interface you want to use.
*You can also create a new service interface, see Creating Conversations with a new Service Operation.
4. Click OK.