DFTA: Dynamic fault tree analysis for real-time business process monitoring

Abstract

This paper proposes a real-time business process monitoring method by integrating Fault Tree Analysis (FTA) and Workflow Monitoring. By extending a typical application of FT A, we derived a novel visualization technique, named Dynamic Fault Tree Analysis (DFTA), to report the ongoing status of running processes to users. Using FTA, we can identify basic events and their structural relationships causing significant failures in business processes such as customer dissatisfaction. Then, DFTA is constructed by matching each of basic events with relevant activities comprising the workflow model of the business process. In the course of running the process, executions of activities and occurrences of basic events are continually observed at each monitoring period. And then, by utilizing DFTA, the probability offailure is monitored based on the ongoing status as the period progresses.