Title page for etd-0811109-120355


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URN etd-0811109-120355
Author Wen-Po Liao
Author's Email Address No Public.
Statistics This thesis had been viewed 5332 times. Download 1701 times.
Department Information Management
Year 2008
Semester 2
Degree Master
Type of Document
Language English
Title Choreographing Web Services in Support of Reliable Composite Web Service Execution
Date of Defense 2009-06-24
Page Count 64
Keyword
  • Web Services
  • Reliability
  • Web Service Selection
  • Choreography
  • Abstract Nowadays, web services have been widely utilized on the Internet. The communication of organizations becomes much easier; thanks to the advances of computer and communication technologies and the inexpensive cost, and the integration of applications within and across business organizations is a trend. In general, there are two approaches in composing web services inside or outside an organization: orchestration and choreography. Previous work in the web service selection is usually based on orchestration model and focuses on the interest of a single party. However, in many application scenarios, business goals are achieved by pair-wise interactions among a set of WSs, and there is no single entity that is in charge of selecting web service for each task. Each web service can autonomously perform web service selection. By autonomy, we maintain that each WS is aware of only its partner web services. In such a choreographic environment, we study the kind of information that each web service should provide to its partner web services and how each web service should perform web service selection so as to maximize the chance of successfully accomplish a business goal. The proposed approach is evaluated by simulating 10,000 execution sequences of the target WS and assumed a fixed operation reliability for each delegation. The experimental results show that our proposed method is close to centralized method and better than other two selection methods, namely random and view-based-propagation-free.
    Advisory Committee
  • Fu-ren Lin - chair
  • Shih-Chieh Hsu - co-chair
  • Wan-Shiou Yang - co-chair
  • San-Yih Hwang - advisor
  • Files
  • etd-0811109-120355.pdf
  • indicate accessible in a year
    Date of Submission 2009-08-11

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