Applied Technology in the Grid Workflow Quality of Service Calculation and Estimation

Author:

Liu Yue Hua1

Affiliation:

1. Hunan University of Commerce

Abstract

For the grid workflow system include a large of candidate services, the activity scheduling in workflow’s ex-ecution base on quality of service (QoS) constraints can pro-vide optimal service for users. This paper established the QoS’s parameter system with applied technology of grid workflow, and introduced the each parameter’s calculation model of activity’s QoS, the grid work-flow’s QoS estimation method based on the basic flow control structures defined by the abstract grid workflow language (AGWL). The experimental results show that the calculation method in this paper can estimate stably QoS parameter values of grid workflow combining with the multi candidate services, and, can provide a reasonable basis for process scheduling based on QoS constraints.

Publisher

Trans Tech Publications, Ltd.

Subject

General Engineering

Reference21 articles.

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2. Cybok D. A Grid Workflow Infrastructure [A]. Workshop on Grid Workflow[C]. Berlin: GGF-10, (2004).

3. ZHOU Jian-tao, YE Xin-ming, A Review on the Grid Workflow and Its Key Technologies, Journal of Inner Mongolia University, vol. 39, No. 5, 2008, pp.581-589, (in Chinese).

4. Foster I, Kesselman, Nick J, et al. The Physiology of the Grid: An Open Grid Services Architecture for Distributed Systems Integration, [R]. Globus Project, http: /www. globus. org/research /papers /ogsa. pdf.

5. Cardorso J, Miller J, Sheth A, et al. Modeling Quality of Service for Workflow and Web Service Processes, ,Web semantics Journal: Science, Services and Agents on the World Wide Web, vol. 1,No. 3, pp.281-308., (2004).

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