臺灣博碩士論文加值系統

近年來由於寬頻網路興起，串流媒體服務已經日漸受歡迎，因此要管理串流媒體服務亦是一個重要的議題，而服務品質(Quality of Service，簡稱QoS)的保證需要由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看出服務的優劣作為使用服務參考，服務的提供者亦可透過服務品質來改善自己的服務。另外由於雙方都有協議的合約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 (Service Level Agreement，簡稱SLA) 為基礎的串流媒體服務管理系統，能夠針對使用者和串流媒體服務的提供者所簽訂的合約，透過代理人來做服務監測，並對違反合約時，發出適當的訊息。另外使用者可透過代理人來對服務做評估，並回傳評估意見給服務管理系統作統整，提供者可依據統整的評估意見來改善或增進自己提供的串流服務。

With the development of broadband network, streaming media services are popular in recent years. It is an important issue to manage streaming media services. To guarantee the Quality of Service (QoS), the agreement should be drawn up between service requestors and service providers. Service requestors can treat criterion of service decided by QoS as preference. Service providers also can improve their service through the QoS.
The thesis proposed a streaming media management system based on Service Level Agreement (SLA). It can monitor service by agents through the contract which negotiates between service requestor and the provider of streaming media service. It will handle some appropriate functionality while any action violates SLA. Service requestors can evaluate service by agent. Agents will return the evaluate results to the management system. Service providers can improve or enhance their services through evaluated comments.

第一章 緒論 1
1.1 概要 1
1.2 研究動機與目標 2
1.3 論文架構 3
第二章 背景知識與相關研究 4
2.1 串流媒體服務 4
2.1.1串流媒體格式 5
2.1.2串流媒體應用 6
2.2 服務等級協議 8
2.2.1服務等級協議管理架構 8
2.2.2服務等級協議生命週期 9
2.2.3服務等級協議合約語法 12
2.3 服務監測 14
第三章 基於服務等級協議之串流媒體服務管理系統 19
3.1 系統架構設計 19
3.2 串流媒體服務管理系統之功能模組 22
3.2.1串流媒體服務中心功能模組 22
3.2.2監測代理人功能模組 29
3.2.3串流媒體服務管理系統功能流程設計 35
第四章 系統實作 42
4.1 服務等級協議的實作 42
4.1.1 服務等級協議合約的語法 42
4.1.2 服務等級協議合約的測試實例 45
4.2 開發工具與環境 47
4.3 系統功能與展示 48
4.3.1 串流媒體服務管理中心 49
4.3.2 監測代理人 56
第五章 結論及未來研究方向 63
5.1結論 63
5.2未來研究方向 63
參考文獻 65

[1]TeleManagement Forum, http://www.tmforum.org ,Accessed on 22nd Nov,2005.
[2]L.-D. Chou, S.-J. Cheng, “QoS Architecture for Web Services,” Proceedings of OOTA – The 15th Workshop on Object-Oriented Technology and Applications, Tainan, Taiwan, R.O.C., Sep.2004.
[3]S-K. Wu, C-W. Chen, X-W. Lu, “Adaptive Con¬text-Aware Web Service Monitoring：QoS Guar¬anteed Web Service Monitoring,” Proceed¬ings of OOTA － The 16th Work¬shop On Ob¬ject-Oriented Technology and Applications, TaiChun, Taiwan, R.O.C., Sep.2005.
[4]L.-D. Chou, C.-C. Cheng, “Using Agent to Implement SLA-based Service Monitoring Systems,” Accessed on July, 2006.
[5]L-D. Chou, Y-C. Yang, C-C. Chen, Y-C. Lin, “A Language for QoS Description in Web Ser¬vices,” Proceedings of OOTA － The 16th Work¬shop On Object-Oriented Technology and Applications, TaiChun, Taiwan, R.O.C., Sep.2005.
[6]Java Remote Method Invocation (Java RMI), http://java.sun.com/products/ jdk/rmi
[7]Apache Tomcat, http://tomcat.apache.org/
[8]Java package for packet capture, http://netresearch.ics.uci.edu/kfujii/jpcap/doc/

[9]H. Ludwig, “Web Services QoS: External SLAs and Internal Policies Or: How Do We Deliver What We Promise,” Proceedings of the Fourth International Conference on Web Information Systems Engineering Workshops, Rome, Italy, 2003.
[10]L. Clement, A. Hately, C. von Riegen and T. Rogers “UDDI Version 3.0.2 UDDI Spec Technical Committee Specification,” http://uddi.org/pubs/uddi_v3.htm
[11]A. Dan, A. R. Franck, A. Keller, R. King, and H. Ludwig, “Web Service Level Agreement(WSLA) Language Specification,” http://www.research.ibm.com/wsla/
[12]Rajesh P, Ranjiith S, Soumya P R, Karthik V, Datthathreya S, “Network Management System Using Web Services and Service Oriented Architecture - A case study,” Proceedings of NOMS 2006, Vancouver, Canada, April.2007.
[13]L.-D. Chou, C.-C. Cheng, Y. –S. Wang, P. –C. Tseng, “Design of An SLA-based Service Monitor System Using Agents,” Proceedings of CODS’07, Chengdu, China, Jul, 2007.
[14]L.-D. Chou, C.-C. Cheng, Y. –S. Wang, P. –C. Tseng, “Design and Implementation of An SLA-based Service Monitor System Using Agents,” Proceedings of SWWS’07, Las Vegas, USA, June, 2007.
[15]A. Keller, G. Kar, H. Ludwig, A. Dan, “Managing Dynamic Services: A Contract Based Approach to a Conceptual Architecture. Proceedings of the 8th IEEE/IFIP Network Operations and Management Symposium, Florence, Italy, pp.513-528, Apr. 2002.
[16]A. Schmietendorf, R. Dumke, D. Reitz, “SLA Management- Challenges in the Context of Web Service Based Infrastructure,” Proceedings of the IEEE International Conference on Web Services, San Diego, California, USA, pp. 606-613, Jul. 2004.
[17]L.-D. Chou, C-C. Cheng, Y-M. Lin, Y-S. Wang, Implementation of Centralized Monitoring System for Web Services,” Proceedings of The 3th Taiwan Conference on Software Engineering,, TaiChun, Taiwan, R.O.C., Jun.2007.
[18]K. Mahbub, G. Spanoudakis, “A Framework for Requirements Monitoring of Service Based Systems,” Proceedings of the 2nd International Conference on Service Oriented Computing, NY, USA, 2004.
[19]J. Yang, M.P. Papazoglou, “Service Components for Managing the Life-cycle of Service Compositions, “Information Systems 29, no. 2, 97-125, 2004.
[20]T. Bultan, X. Fu, R. Hull, and J. Su, “Conversation Specification. A New Approach to Design and Analysis of E-Service Composition, “ Proceedings of the 12th International World Wide Web Conference, ACM, 403-410, 2003.