Abstract: Business process reengineering (BPR) is one of the most popular concepts in management field today. In the light of the lack of methods and tools to direct and suppoft the redesign of process, the article puts forth a method of BPR. The method includes redefining the activities, the basic components of processes, building a database describing the activities and their relations, searching and retrieving the set of feasible designs of new processes from the database by means of the closeness coefficient of activities,and obtaining the optimal design by means of utility function. What’s more, the method supports to search and retrieve the redundant activities based on the similarity coefficient of activities in order to combine or delete the similar aCtivities. Finally, the article suggests building a DSS to support the method.

Key words: Business process reengineering, activity, decision support system