以網路服務為基礎兼具運算協調能力的分享設計

Web-Services Based Coordination Design for Computing Power Services

王振生(Chen-Sheng Wang) ； 蔡銘箴(Min-Jen Tsai)

《資訊管理學報》 13卷S期 (2006/10) Pp. 161-182

https://doi.org/10.6382/JIM.200610.0008

摘要

Computing Power Services (CPS)是一個輕量級以網路服務(Web Services)為基礎的運算能力分享設計，適合在企業內的信賴網路中執行程式的運算，並使用Web Services和Business Process Execution Language (BPEL)提供可圖形化發展環境和流程控制管理的能力。然而，在類似CPS這種即時分散式運算環境中，為了達到最佳化的運算效能，協調運算資源是其中重要的關鍵。因此，本研究利用模糊群體決策方法，使CPS架構具有服務品質(Quality of Service)的即時運算協調能力，來提升整體架構的執行效能，並使得在資源、條件不同的情形下，可保有相對穩定的運算能力。在本研究中，此方法運用在分析數位浮水印強度的filter bank選擇，用以測試執行效能，和未使用協調運算機制相比，在效能及穩定度上，本研究設計皆能加以改善。

關鍵字

Web Services ； BPEL ； 模糊群體決策 ； 分散式運算 ； 服務品質

並列摘要

Computing Power Services (CPS) is a lightweight, Web-services-based computation sharing architecture. It can be implemented within the trusty enterprise network which utilizes Web-services and Business Process Execution Language (BPEL) in order to provide a visualized developing environment with workflow management capability. However, the coordination mechanism of the computing resources is a key factor to have the optimized results in a real-time distributed computing architecture like CPS. Therefore, a fuzzy group decision-making module is proposed in this paper for CPS to provide real-time computation coordination and quality of service. This module increases the computing performance efficiently and shows stability in various environments. In this research, the module has been applied to analyze the robustness of digital watermark by filter bank selection. As the result of this study, the performance can be improved in the aspect of speedup and stability.

並列關鍵字

Web Services ； Business Process Execution Language BPEL ； Fuzzy Group Decision-making ； Distributed Computation ； Quality of Service

參考文獻

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