Resource Planning for Distributed Service-Oriented Workflows
Key: Eck08-1
Author: Julian Eckert
Date: July 2008
Kind: In proceedings
Publisher: INNSTICC PRESS, Portugal
Book title: 3rd International Conference on Software and Data Technologies (ICSOFT 2008)
Abstract: Collaborations between enterprises cause the need for cross-organizational workflows that can be realized by adopting the Service-oriented Architecture paradigm. In order to cope with the challenge to ensure several Quality of Service (QoS) demands during workflow composition, performance evaluation and execution management of service-oriented workflows became quite important in order to avoid performance degradation. In a distributed workflow scenario with services from external partners, resource planning of services is crucial to ensure that the workflow execution remains feasible and that Service Level Agreement (SLA) violations due to overload are avoided. My research focuses on the development of a holistic resource planning approach that facilitates optimal compositions of services to workflows depending on various customer demands and request priorities, different pricing models, and several QoS requirements. Besides a worst-case and an average-case performance analysis including optimization models, I am working in my research towards a detailed resource planning approach in order to ensure that all incoming execution requests to a distributed service-oriented workflow can be served at minimal costs.

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