The following table describes the activities and operators in the Interface tool palette.
Interface tool palette
| Icon | Name | Description |
|---|---|---|
 | Choice | Invokes a business process based on the receipt of two or more different message types. |
 | Receive Request | Creates a new operation in the interface portion of the business process that can be invoked by an external client. |
 | Send Response | Allows the business process to send a response to an external client. A send must be associated with a process and a receive. |
 | Request/Response | Creates a receive and a send action, which are connected by a complex activity. This pair creates a new operation in the interface that can be invoked by an external client and that passes a response from the business process to an external client. |