A Method of Unexpected Exception Handling in Workflow Systems

How to handle unexpected exceptions to improve the reliability of workflow system is facing a major problem. The traditional exception handling in workflow system stays in expected exceptions handling, it is lack of the handling of unexpected exceptions, and the main handling of unexpected exceptions relies on the intervention of human, which reduces the efficiency of the system and takes a lot of time. This paper put forward to a method to handle the unexpected exceptions automatically and in real time, when unexpected exceptions are happened, the method can choose a new process definition to replace the current process model automatically, through this method the normal execution of the process can be guaranteed.