Challenges in Flexible Workflow Architecture: A Review

The introduction of Information technology has leaded the workflow systems (WFs) to become more flexible and dynamic at runtime. The fixed WFs are replaced by changeable WFs. The challenges faced by a workflow at the time of execution due to its flexible nature are focus of this paper. Flexibility is the capability of workflow process to execute on the basis of a loosely, or partially specified model, where the full specification of the model is made at runtime, and may be unique to each instance or at each sub-workflow level. This flexibility introduces different challenges during the course of execution. This paper identifies the problems / challenges and puts forth a study on different parameters which were used in the solutions to the challenge and their lacunas in the same.