System Infrastructure for Digital Libraries: A Survey and Outlook
SOFSEM '98 Proceedings of the 25th Conference on Current Trends in Theory and Practice of Informatics: Theory and Practice of Informatics
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Workflow management systems are developed to support and automate the execution of business processes, by assigning tasks to agents according to the workflow specification. Current state-of-the-art workflow systems are mainly concerned with the routing and assignment of tasks, providing little support for tasks related to administration and management. This deficiency is exacerbated in dynamic open environments, where services provided and managed by multiple autonomous authorities need to be integrated. Such environments significantly stretch the assumptions underlying current state-of-the-art workflow system designs, especially as network-centric applications become wide-spread. In this paper we propose a framework, service level management, for addressing all system administration in an integrated manner, in the context of a workflow execution model that allows for dynamic adaptation (reconfiguration) of work sessions in a dynamic and heterogeneous run-time environment. Service level management requires a comprehensive monitoring infrastructure. In this paper we present our design for such an infrastructure, which is part of our current work towards developing the Aurora architecture for supporting work sessions.