The reception end of a business process receives requests from service requesters, and the response end returns responses from the business process to the service requester.

You can use both standard reception and user-defined reception in the request reception that receives requests from service requesters.

The following figure shows the flow of reception and response of a business process.

Figure 3-1 Flow of reception and response of a business process

Use the receive activity for reception, and use the reply activity for response.

You can define either of the following communication models for reception:

• A synchronous business process in which a response message is returned
• An asynchronous business process in which a response message is not returned