有鑒於目前開放原始碼軟體日漸普及，但仍欠缺完整的理論以說明開放程式碼與商業程式碼的品質差異。若以制度化的機制來檢驗開放程式碼專案，將有助於衡量開放原始碼專案的品質，亦可由各種不同相度去評斷一個專案的好壞。也希望藉此統計出專案發展者的貢獻度，以及開放程式碼專案之間互相利用的情形，以正比例回報所付出的貢獻度。我們將提出評估方法，以評斷專案的各項指標對於開放程式碼軟體持續度(sustainability)的影響，與貢獻度的分析,方便找出一般成功開放程式碼專案的成功因素。
目前對於開放原始碼軟體的發展現象，缺乏廣泛的理論據以解釋說明。我們就研究現況，解釋目前開放程式碼軟體的各種性質，提出修正且改進不合理的地方，包括取樣與分析的方法。
我們著重在驗證SourceForge上所選出的當月最佳專案，檢驗這些專案的發展過程，分析貢獻者(發展者/使用者)在程式碼(核心/使用者介面)上的貢獻度比例，並提出驗證假設＂成立之初就有雛型的專案，其活躍值會高於沒有雛型的專案＂。

1 簡介 5
1.1 研究動機 5
1.2 背景 5
1.3 研究目標 6
2 相關工作 8
2.1 The Cathedral and Bazaar Theorem 8
2.2 Sourceforge 8
2.3 Lotka’s Law and Power Law 9
2.4 Brook’s Law and Linus’s Law 10
2.5 Cooking Pot Theorem 11
2.6 PCMM(people capability maturity model) 11
2.7 XP(Extreme Programming) 14
2.8 XP與PCMM之相關性 16
2.9 XP與OSS(open source software)之異同 17
2.10 Open Source Project and Open Source Community 18
2.11 Open Source Software Developing Pattern 19
2.12 Motivation of developer and user to contribute 21
3 之前的研究工作 22
3.1 Two Case Studies of Open Source Software Development: Apache and Mozilla 22
3.2 Characteristics of open source projects 23
3.3 SourceForge default attributes 24
3.4 The Perils and Pitfalls of mining SoureForge 24
3.5 On the Pareto distribution of Sourceforge projects 25
3.6 The open source software development phenomenon：An analysis based on social network theory 26
4 研究方法 28
4.1 取樣 28
4.2 成功的定義(分為Vitality以及Popularity探討) 29
4.3 雛型(prototype)的定義 30
4.4 當月最佳專案的持續度(sustainability) 31
4.5 社群的大小 31
5 結果以及分析 34
5.1 當月最佳專案的持續度 34
5.2 貢獻度的分佈比例 40
5.3 雛型影響活躍度的程度 43
6 結論與未來的工作方向 44
參考文獻 46

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