Business process recovery based on system log and information of organizational structure

In most current cases of enterprise system development, the requirement specifications should follow those of an existing legacy system. However, it is difficult to identify high-level specifications, such as business process steps, from legacy and undocumented systems. In this paper, we propose a method to recover an abstract business process by using system logs and the organizational information of the operators using an existing legacy system. Our method provides a hierarchical view based on a clustering technique to find abstract activities that consist of a series of operations. We also propose a method to extract the main operation in a cluster. We evaluated the effectiveness of our method through experiments on a real system.