A quality metric for BPEL process under evolution

In Service-Oriented Architecture (SOA), behaviour of a business process is specified using Business Process Execution Language (BPEL) which is a XML based language. In today's competitive market, enterprises change their business processes frequently. Changes in BPEL process may affect the quality of BPEL process for the consumer. It is desirable to measure and evaluate the BPEL process quality when changes occur. Metrics are vastly used to provide a quantitative measure for the quality. In this paper, BPEL Process Usefulness Metric under Evolution (BUME) is proposed to measure quality of a BPEL process when it evolves. The applicability of the metric is demonstrated using simulated data for different versions of a BPEL process.