Text related to fault handling discussion

This text is from a recent WS-BPEL draft:

"Because WSDL does not require that fault names be unique within the namespace where the service operation is defined, all faults sharing a common name and defined in the same namespace are indistinguishable in BPEL4WS. In WSDL 1.1 it is necessary to specify a portType name, an operation name, and the fault name to uniquely identify a fault. This limits the ability to use fault-handling mechanisms to deal with invocation faults. This is an important shortcoming of the WSDL fault model that will be removed in future versions of WSDL."

>From my understanding, BPEL is interested in being able to handle a fault message independently from any specific operation, and that is why they have raised this as an issue.

However, from a CDL perspective, fault messages are always handled within an interaction that does have the relevant context (i.e. the port type and operation name) - and therefore adding the faultName to a respond exchange would "uniquely identify a fault". Unlike BPEL, CDL does not require faults to be globally unique, as they are alway handled in the context of an operation.

Regards
Gary