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Web services create interoperability among information systems and web service orchestration enables the coordination of activities. Both enable public agencies to cooperate more and more in chains to deliver services to their constituents. There are various ways to organize the coordination of cross-agency processes. In general it can be done in either a centralized or a decentralized way. Yet there is much confusion about which type of arrangement best fits public administration. This paper report case studies; it takes a decentralized way to coordinate activities and the other takes a centralized approach. Using interviews the authors identified the main pros and cons of each approach and compared them with each other.
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