近來，觀點導向之軟體發展方法在軟體工程領域引起了相當大的關注。然而，在現階段的研究中，並沒有方法能夠以量化的方式，將早期觀點從盤根錯節的需求描述文件中辨識出來並加以系統性的方析。本論文嘗試研究探討目標、劇情及早期觀點之間的彼此互動關係，並提出一個利用競標程序來進行早期觀點識別的目標驅動軟體工程方法。此競標程序探查了使用案例與目標之間的關係，並利用目標與目標之間的相似度與互相影響度來形成目標叢集，進而幫助系統分析者辨識出早期觀點之所在。藉由將早期觀點引入目標驅動之軟體工程方法，便能於系統發展分析階段時，加以處理盤根錯節的需求陳述問題。本研究包含兩項主要功能：? (1)以量化的方式進行早期觀點之識別。 ? (2)提供一套目標驅動之塑模方法，能夠將早期觀點與被其所影響的系統行為描述於以UML為基礎的需求描述文件中。 Recently, aspect-oriented approaches have resulted in a tremendous impact on the processing of system properties during the development of software systems. However, a quantitative way for eliciting early aspects from requirements is still underdeveloped to better integrate early aspects with the analysis results. As an attempt towards the investigation of the interactions among goals, scenarios, and early aspects, this dissertation proposed a goal-driven quantitative approach as a continuation of our previous work to the discovery of early aspects by means of a bidding process - a process that explores the interactions among goals, use cases, and early aspects, which engages similarity degrees among goals for grouping goal clusters, interaction degrees for checking the validity of the bidding, and scattering together with tangling degrees for stabilizing the derivation of new goal clusters in the process. By introducing early aspects, the goal-driven approach can be further enhanced to deal with the crosscutting properties in the analysis stage of software development. The proposed approach is illustrated using the problem domains of meeting scheduler system.
