Exception Handling Using Task Deferral in Document-Driven Workflow Systems

6 Pages Posted: 12 Sep 2006

See all articles by Jianrui Wang

Jianrui Wang

Pennsylvania State University

Akhil Kumar

Pennsylvania State University - Smeal College of Business

Abstract

This paper analyzes various causes of exceptions at the task level in a workflow system. Conventional control flow based workflow systems mix hard constraints like data dependencies between tasks with soft constraints like business rules. Thus, they lack flexibility and are not suitable for ad hoc workflow applications where exceptions arise frequently. We first show that document-driven workflow systems are more suitable for such environments. Second, we propose an exception handling mechanism based on task deferral in document-driven workflow systems and give an algorithm for implementing it. Our work is particularly relevant for real-time workflows with deadlines.

Keywords: Deferral, Workflow, Document-Driven, Exception

Suggested Citation

Wang, Jianrui and Kumar, Akhil, Exception Handling Using Task Deferral in Document-Driven Workflow Systems. Annual Workshop on Information Technolgies & Systems (WITS), 2005, Available at SSRN: https://ssrn.com/abstract=929400

Jianrui Wang

Pennsylvania State University ( email )

university park, PA 16802
United States

Akhil Kumar (Contact Author)

Pennsylvania State University - Smeal College of Business ( email )

University Park, PA 16802
United States

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