由於網際網路的普及，以及企業專注於核心競爭能力而將部份的企業流程外包，跨公司的合作已經成為勢在必行的趨勢之一。為了能夠更有效的監控多方合作夥伴之間的流程處理狀況，我們在這篇論文中發展了一個基於Web service stack的例外處理機制。第一個步驟採用的是BPEL4WS語言標準內所提供的錯誤偵測與補償機制，借以回覆屬於同一個生命週期的所有工作流程到最原始的狀態。第二個步驟，我們藉由資源搜尋機制(例如UDDI或者買賣雙方服務需求比對引擎)來搜尋適合的替代廠商或者合適的合作夥伴。第三個部分，則是利用了BPEL4WS流程的延展性以及擴充性來因應臨時的狀況發生、改變流程的執行。我們設計了一個實驗，來評估資源搜尋機制以及流程的擴充對於例外處理機制的影響與比較。實驗結果顯示本研究所發展的系統有明顯的效能提升。本研究的目的是藉由例外處理機制來處理流程執行過程中例外的產生。

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.

CHAPTER 1 INTRODUCTION 1
1.1. RESEARCH MOTIVATION AND OBJECTIVES 2
1.2. THESIS ORGANIZATION 4
CHAPTER 2 LITERATURE REVIEW 5
2.1. OUTSOURCING 5
2.2. WEB SERVICE STACK 5
2.2.1. Network Protocols and SOAP 7
2.2.2. WSDL 7
2.2.3. UDDI 7
2.2.4. BPEL4WS 9
2.3. WORKFLOW FORMATION 11
2.3.1. Services are treated as plug-in components 12
2.3.2. Resource Management 14
2.3.3. The necessity of setting business process standard—BPEL4WS 14
2.3.4. Process centric and semi-structure business process 16
2.3.5. Two approaches for composing Web services to form business process 17
2.3.6. Using UML for modeling BPEL4WS business process 20
2.3.6.1. Modeling business process by UML 21
2.3.6.2. Benefit getting from this Service-oriented business process 25
2.4. EXCEPTION 25
2.4.1. The definition and categories of exception 25
2.4.1.1. Exceptions from the Resources for manufacturing Dimension 25
2.4.1.2. Exceptions from the Case Dimension 26
2.4.1.3. Exceptions from the Process Dimension 27
2.4.2. Summarization of Exception Categories 27
2.4.3. Several ways for exception handling in the past 28
CHAPTER 3 RESEARCH FRAMEWORK 31
3.1. SUPPLY CHAIN STRUCTURE OF LCM INDUSTRY 31
3.2. ELABORATION OF EXCEPTION HANDLING MECHANISM PLUGGED IN THE BPEL4WS BUSINESS PROCESS 34
3.2.1. The Fault and Compensation Handler Provided by BPEL4WS 38
3.2.2. Mechanism for Resource Searching (Research management) 40
3.2.2.1. BE4WS (Business Explore for Web Service) 43
3.2.2.2. BCME (Business criteria matchmaking engine) 45
3.2.3. Reform the business process 47
CHAPTER 4 EXPERIMENTAL DESIGN 49
4.1. EXPERIMENTAL SETTINGS 49
4.2. EXPERIMENTS 54
4.3. EVALUATION CRITERIA 56
CHAPTER 5 EXPERIMENTAL RESULTS AND DISCUSSIONS 58
5.1. EXPERIMENTAL RESULTS 58
5.2. EXPERIMENTS DISCUSSIONS 62
5.2.1. The effects of BPEL4WS exception detection of exception handling mechanism 62
5.2.2. The effects of resource searching of exception handling mechanism 65
5.2.3. Discussion of Cooperation Mode and Replacement Mode 69
CHAPTER 6 CONCLUSIONS AND FUTURE WORK 73
6.1. CONCLUSION 73
6.2. LIMITATION AND FUTURE RESEARCH 73
REFERENCES 75
APPENDIX A. BPEL4WS-BASED BUSINESS PROCESS 78
LCMBUSINESSPROCESS.BPEL 78
LCMPURCHASEPROTOCOLS.WSDL 83

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