The Development of the Exception Handling Mechanisms Based on BPEL4WS

• Main Authors: Hsiang-chin Chang, 張祥琴
• Other Authors: Fu-ren Lin
• Format: Others
• Language: en_US
• Published: 2004
• Online Access: http://ndltd.ncl.edu.tw/handle/17273608633637528683

碩士 === 國立中山大學 === 資訊管理學系研究所 === 92 === Because of the advance of Internet and the outsourcing, multi-company cooperation is imperative under this circumstance. In order to monitor states between partners during execution, this thesis develops exception handling mechanisms based on Web service stack. After detecting exceptions, the first step is to make use of the fault handler and compensation handler provided by the BPEL4WS specification to roll back planned or even executed business processes belonging to the same scope to the original state. The second step is to utilize the resources searching mechanism, including BE4WS and BCME, to find suitable substitutes to make a replacement or find fitting partners to cooperate with the original one. The third step is to take advantage of the extensibility, flexibility and scalability of BPEL4WS business process to adjust and re-form a new one to handle this unexpected situation. This study uses the LCD supply chain as an example to evaluate the proposed exception handling mechanisms. The result shows that the proposed methods obtain encouraging performance. The major contribution of this research is the initiation efforts on developing exception handling mechanisms based on Web service technologies to improve the exception handling performance.