Wheres the justification?
The real issue however is why harmonize on WSDL because there is clearly a cost associated with this move. I asked IBM to consider an archetypal banking customer that is using SwiftXML and has an established batch process in place that transfers large numbers of documents between banking organizations and front to back office. Currently they are using straight XML, transported over MQSeries with Java code managing the translations, transformations and interactions with business logic. I asked what is the commercial justification for implementing WSDL on top of this batch process? The answer was that it’s about standardization and potential flexibility. For IBM they are keen to promote the WebSphere single toolset environment, which provides a single IDE, single skills, common metadata layer and process definition environment that can be used for many different architectural alternatives. Clearly this can be an attractive message, but it does seem to me that there will be a transitional
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