Workflow management system is to support automated business process in an organization and nowadays it is to be used as a solution for application integration and business-to-business transaction. Therefore, the interoperation between workflow management systems in different organizations became indispensable.
The results of recent researches, however, have the engine specific architecture because there is no standard about the interfaces between Workflow system and the interoperability module. If the interface between the two has standardized specification, it will be easy to add module to Workflow system. Therefore, we suggest a Workflow engine independent interoperability module for Workflow system using Workflow interface 2. This approach will provide the portability with the interoperation support module and because parameters for interoperation are passed as relevant data it will also provide flexibility for defining the required data.
We first explain the interoperability standard and other researches about the interoperation module. And according to the defined problem, we specify the requirements. The result of implementation is tested through an example scenario.