Remote Procedure Invocation (50) has to make requests in the data format specified by the service that is to be called even if the application’s internal format is different. This typically requires the calling application to perform a transformation of data. Some of the most sophisticated transformation engines are incorporated into ETL (extract, transform, load) tools, such as Informatica or DataMirror. These tools typically transform a large set of data at once instead of transforming individual messages.
