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Web service development and usage has shifted from simple information processing services to high-value business services that are crucial to productivity and success. In order to deal with an increasing risk of unavailability or failure of mission-critical Web services the authors argue the need for advanced reservation of services in the form of derivatives. The contribution of this paper is twofold: First the authors provide a model of a market design that enables the trade of derivatives for mission-critical Web services. Furthermore the authors provide architecture for a Web service market that implements the model and describes the strategy space and interaction of market participants in the trading process of service derivatives.
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