Abstract
Software has become a rapidly evolving artifact and Workflow Management Systems (WfMSs) are not an exception. WfMSs’ changes may impact key performance indicators or resource consumption levels may change among different versions. Thus, users considering a WfMS upgrade need to evaluate the extent of such changes for frequently issued workload. Deriving such information requires running performance experiments with appropriate workloads. In this paper, we propose a novel method for deriving a structurally representative workload from a given business process collection, which we later use to evaluate the performance and resource consumption over four versions of two open-source WfMSs, for different numbers of simulated users. In our case study scenario the results reveal relevant variations in the WfMSs’ performance and resource consumption, indicating a decrease in performance for newer versions.
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