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Journal of Information Science and Engineering, Vol.19 No.1, pp.15-38 (January 2003)


Distributed Workflows: A Framework for
Electronic Commerce*

Vlad Ingar Wietrzyk and Makoto Takizawa+
School of Computing & Information Technology
University of Western Sydney
Penrith South DC NSW 1797, Australia
E-mail: v.wietrzyk@uws.edu.au
+Department of Computers and Systems Engineering
Tokyo Denki University
Saitama, 3500394, Japan

E-Business requires that corporate information systems be available twenty four hours a day, seven days a week (24 x 7 operation). Strategic operational significance carries a major technical challenge for architects of such highly available systems-in particular it is critical to devise and implement on-line utilities for continuous maintenance of the system at the highest available performance level. In this paper, we consider the problem of on-line reorganization in object databases supporting workflow engine. We also choose to develop a formal framework for a secure, highly available distributed workflow architecture since interworkflow is anticipated as a major supporting mechanism for Business-to-Business Electronic Commerce. The contributions of this paper are both of theoretical and of experimental nature. We complement our algorithms with encouraging experimental results.

Keywords: distributed architecture, multilevel secure distributed workflow, on-line workflow database reorganization, electronic commerce, system mode

Full Text () Retrieve PDF document (200301_02.pdf)

Received September 22, 2001; accepted April 15, 2002.
Communicated by Jang-Ping Sheu, Makoto Takizawa and Myongsoon Park.
* Research supported by the UWS, Versant Technology Corporation and Intel Corporation.