1. A computer implemented system for interoperably processing object oriented transaction requests with procedural transaction requests using an existing procedural transaction coordinator, said interoperation supporting procedural and object oriented transaction operations within a single atomic transaction having a single transaction result, the system comprising: a procedural coordinator having a plurality of procedural programming interfaces; first means for requesting transaction processing through said plurality of procedural programming interfaces from an object oriented transaction processing system, said first means for requesting returning a first result; means for managing object oriented transactions originating in an object oriented application; second means for requesting transaction processing through said plurality of procedural programming interfaces from a procedural transaction processing system, said second means for requesting returning a second result; means for invoking one or more object oriented processing methods from said procedural coordinator said object oriented processing methods being methods of said means for managing object oriented transactions; and means for coordinating atomic transaction completion such that said transaction result depends upon both said first and second results, said means for coordinating invoking said means for managing object oriented transactions to coordinate object oriented transaction completion.