期刊论文

Chen, Feng

Chen, F (reprint author), De Montfort Univ, Software Technol Res Lab, Leicester LE1 9BH, Leics, England.

Tang, Da,Yang, Hongji,Alawairdhi, Mohammed

2014-01-01

COMPUTER SCIENCE AND INFORMATION SYSTEMS

SCIE

J

11

1

1-27

1820-0214

computer software re-engineering; workflow management; precondition-based workflow model; whole-condition of an activity

Workflow management systems (WfMSs) become the basic technology for organisations to build their Information Systems. To understand the business processes already implemented in the existing software systems and then build the workflow oriented Information System is a time-consuming and error prone process. This paper proposes a unified software re-engineering approach from a business process perspective. A workflow extraction method is developed to elicit the business processes from existing systems. A precondition-based workflow model is designed for this pm-pose, which is an activity-centred method for program analysis. The calculation of the activity's whole condition provides powerful analysis techniques to verify the correctness of the recovered workflow model. Through the proposed approach, the workflow procedures can be recovered from the existing system and verified by the precondition analysis.