Concurrency optimization of business processes to balance workload

Today, business process management systems (BPMS) are rapidly expanding. Organizations and corporations need to leverage BPMS to manage their business processes and to increase economic productivity for competing in the international market. Therefore, researchers are to increase the features of BPMS. Workload balancing in BPMS is one of the challenges which have been studied by researchers. The purposes of workload balancing include increasing system stability, improving the resource efficiency and enhancing the quality of its products. In this paper, undesirable effects of the time delay of arrival rate in the tasks are presented. To overcome the undesirable effects, we define the workload pattern of resources and we propose a heuristic method to manage and regulate the processes in the BPMS as Process Concurrency. we leverage PSO algorithm to optimize process concurrency. Therefore, in addition to balancing the workload of resources, workload for each resource is maintained uniform through time. Creating uniformity in workload, as a result, increase the resource efficiency and improve the quality of products and services. To evaluate the proposed method, experimental results showed the optimal process Concurrency 29.8% increase balance and uniformity in the resource workload.