Service Provider responds with a fault.
Service Consumer responds with the status to complete the
message exchange.
So, what you need to note is that, in the Robust In-Only MEP??”Normal scenario,
the exchange is terminated when the Provider responds with status to complete
the message exchange, whereas in the Robust In-Only MEP??”Fault scenario, the
exchange is terminated when the Consumer responds with the status to complete the
message exchange. The status to complete the message exchange even in the case of
fault scenario, brings robustness to it.
In-Out MEP
In-Out MEP is used for a request-response pair of service invocations. Here the
Consumer issues a request to the Provider, with expectation of a response. It has got
two usage scenarios??”the normal scenario and the fault scenario.
Normal scenario: In the In-Out MEP in the normal (without any fault)
scenario, the Consumer issues a request to the Provider, with expectation of a
response. The Provider responds with the normal response.
The following figure explains the In-Out MEP??”Normal scenario:
?° ?° ?°
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Chapter 2
[ 51 ]
In the In-Out MEP??”Normal scenario, the sequence of operations is
as follows:
Service Consumer initiates with a message.
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