1.3.1 Scenarios

This section describes scenarios that capture the various message exchange patterns between SOAP nodes. These scenarios help to define the communication modes that are covered in the next section and that the protocol needs to support.

The scenarios describe a sales organization that has several salespersons; some are in the head office and some offsite. They are interacting with the customers and preparing purchase orders that need to be sent to a central server as SOAP messages. The purchase orders can also be retrieved from the server, again as SOAP messages. The Asynchronous Message Relay is a mechanism that is used to queue up messages when the salesperson is offline and then relay the messages after connectivity is established. One such mechanism is Microsoft Message Queuing, as described in [MS-MQOD].

Figure 1: Asynchronous Message Relay