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The authors present novel concepts to formalize and apply Non-Functional Requirements (NFRs) for business processes in the context of Service-Oriented Architectures (SOAs). Today, popular languages for modeling business processes do not support the specification of NFRs in a systematic manner. However, there is a strong demand to explicitly address such requirements when designing and deploying software systems. In this paper, the authors elaborate an extension for BPMN (Business Process Model and Notation) towards the modeling of NFRs. A key feature is the tool independent representation of NFRs, which will be achieved by applying the widely used WS-Policy standard.
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