After introducing the innovation architecture for service, this paper shows how business process engineering is used with the architecture. In particular, dynamic properties of a business process will be specified in relation to information systems in the process. The dynamic properties of the process are inventory level, throughput and cycle time that are known as the Little's law. The concept of business transaction systems is used, which is a discrete-event model of a business process with information system. In this sense, business process engineering can be viewed as discipline that mediates service innovation and service-oriented architecture.
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