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    Please use this identifier to cite or link to this item: http://ir.lib.ncu.edu.tw/handle/987654321/9644


    Title: 以服務等級協議為基礎之自動補償網路服務管理系統;Auto-Compensation of SLA-based Web Services Management System
    Authors: 王詠世;Yung-Shih Wang
    Contributors: 資訊工程研究所
    Keywords: 網路服務;服務品質;服務等級協議;服務自動補償;Web Service;Quality of Service;Service Level Agreement;Web Service Auto-Compensation
    Date: 2008-07-18
    Issue Date: 2009-09-22 11:52:32 (UTC+8)
    Publisher: 國立中央大學圖書館
    Abstract: 近年來網路服務 (Web Service) 技術已普遍受到各界使用,利用現有的網際網路通訊協定以及相關的標準,來爲其它的應用程式提供服務,亦即它是提供服務的軟體元件並以網路開放式的標準為基礎,能夠輕易的將在不同平台上面,使用不同程式語言所建置的異質系統,彼此互相整合起來。而服務品質 (Quality of Service,簡稱 QoS) 的保證,需要由服務使用者和服務提供者雙方來擬定協議,藉此使用者可透過服務品質來判斷服務的優劣,用以作為是否繼續使用服務的參考,服務提供者亦可透過服務品質來改善或加強自己提供的服務,由於雙方都有協議的合約 (Service Level Agreement,簡稱 SLA) 來規範自己的權利及責任,進而能夠更放心的使用以及提供服務。 本論文提出一個以服務等級協議為基礎的自動補償網路服務管理系統,主要針對服務使用者與服務提供者雙方所簽訂的服務等級協議,做服務監控的機制並且管理 SLA 合約,當違反合約所簽署的服務品質時需做適當的處理之外,當服務品質的效能降低影響到服務使用者使用服務時,本系統可以對服務預先做補償的動作,使得網路服務的品質不至於超出合約訂定的範圍,進而能夠讓服務使用者更穩定且持續的使用服務,也能夠使得服務提供者不違反合約,以便獲取最大的利益。 The Web Service has become one of promising technologies, and is getting widely adopted in business and also gradually deployed in real customer environment. The technology of Web Service is capable of providing a means to integrate different functional components over Internet and enabling business entities to interact one another through standard application program. The Quality of Services (QoS) plays an important role for Web Services in consequence of Web Service is a dynamic system which contains some unexpected factors. QoS is composed of some attributes, such as reliability, availability, security, and performance measures. Users are desirous of service that they are offered with guarantee consequently the concept of Service Level Agreement (SLA) is growing momentous by degrees. Consequently, service provider and service requester each takes what they need under the protection of SLA. This thesis proposed an SLA-based Web Services Management System for Auto-Compensation. The System aims to manage and monitor the SLA that had been negotiated between the service requester and the service provider. The system would handle the violation with some appropriate functionality while any actions infringe on SLA. While the efficiency and quality of the Web Service performance becomes lower, the system could discover the problems and operate compensation in advance. Service requester makes use of the service as usual and service provider has taken the necessary precaution beforehand. Both sides could benefit from it and construct the constant relationship.
    Appears in Collections:[資訊工程研究所] 博碩士論文

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