一個運用樣式來簡化簽核流程設計的方法

Abstract

在工作流程中的驗證或是授權等各種重要的程序中，簽核都扮演了一個很重要的角色。而在每個簽核之間可能會存在著很複雜的依賴關係，故塑模簽核流程是一個耗時且容易出錯的工作。目前大多數有關於簽核的文獻研究側重於數位簽章的加解密演算法，而較少文獻探討簽核流程的塑模方法。在這篇論文中，我們試圖提出一個基於樣式的系統化塑模方法來簡化簽核流程的設計工作。此方法先以BPMN建構可供流程設計者使用的簽核流程樣式，且為了簡化簽核活動設計的工作，流程設計者在簽核活動設計階段可暫先不須考慮BPMN交易流程的屬性。等到簽核活動設計完成後，我們再提出一個交易塑模方法逐步地將BPMN交易流程的屬性加入到設計完成的簽核活動中。最後流程設計者只要將這些具有BPMN交易屬性的簽核活動嵌入簽核流程樣式即可。我們提出的方法將可以減少流程設計者以BPMN塑模簽核流程的設計工作和語義錯誤。

Signatures responsible for significant purposes in various workflows such as authentication, authorization, etc are important in workflow management. The dependencies between signatures can be complex, and modeling signature workflows is time consuming and error-prone. Most current studies associated signatures focus on digital signatures only, and modeling of signature workflows is seldom studied. In this thesis, we propose a pattern-based systematic methodology to simplify the design of signature workflows. There are signature patterns constructed on the basis of BPMN for use. During the process design, the works, which are not the signature functions in signature workflow such as cancel end events, are postponed to simplify the work. After the process design, a step-by-step method is applied to transform the processes into transactions by adding the properties. Finally, each atomic signature activity in the signature pattern is filled with the corresponding transaction. With the patterns and the focus of signature function, our method may reduce the design efforts and the semantic errors in modeling signature workflows.