Affiliations: Center for Computation and Technology (CCT) and
Department of Computer Science, Louisiana State University, Baton Rouge, LA
70803, USA. E-mail: {embahsi,eceyhan,kosar}@cct.lsu.edu
Abstract: Workflows form the essential part of the process execution both in a
single machine and in distributed environments. Although providing conditional
structures is not mandatory for a workflow management system, support for
conditional workflows is very important in terms of error handling, flexibility
and robustness. Several of the existing workflow management systems already
support conditional structures via use of different constructs. In this paper,
we study the most widely used workflow management systems and their support for
conditional structures such as if, switch, and while. We compare
implementation of common conditional structures using each of these workflow
management systems via case studies, and discuss capabilities of each system.
