SYSTEMS ANALYSIS AND DESIGN METHODS 7 th Edition

SYSTEMS ANALYSIS AND DESIGN METHODS 7 th Edition Whitten Bentley C H A P T E R 6 需求收集 © The Mc. Graw-Hill Companies, Inc. , 2007

SYSTEMS ANALYSIS AND DESIGN METHODS 7 th Edition Whitten Bentley 本章地圖 © The Mc. Graw-Hill Companies, Inc. , 2007

SYSTEMS ANALYSIS AND DESIGN METHODS 7 th Edition Whitten Bentley 修正一個錯誤的相關成本 © The Mc. Graw-Hill Companies, Inc. , 2007

SYSTEMS ANALYSIS AND DESIGN METHODS 7 th Edition Whitten Bentley 需求調查的流程 • 問題的發現與分析 • 需求調查 • 以文件說明並分析需求 • 需求管理 © The Mc. Graw-Hill Companies, Inc. , 2007

SYSTEMS ANALYSIS AND DESIGN METHODS 7 th Edition Whitten Bentley 需求定義大綱範例 © The Mc. Graw-Hill Companies, Inc. , 2007

SYSTEMS ANALYSIS AND DESIGN METHODS 7 th Edition Whitten Bentley 決定樣本大小的公式 • 決定樣本的大小： – SS = 0. 25 x (確定因子／可接受的誤差) 2 – SS = 0. 25(1. 645/0. 10)2 = 68 – SS = 0. 10(1 – 0. 10)(1. 645/0. 10)2 = 25 從統計表查得確定 因子。 10% 容忍誤差。 或者，分析師已 知每 10個就有1 個變異。 © The Mc. Graw-Hill Companies, Inc. , 2007

SYSTEMS ANALYSIS AND DESIGN METHODS 7 th Edition Whitten Bentley 訪談指南範例 （續） © The Mc. Graw-Hill Companies, Inc. , 2007

SYSTEMS ANALYSIS AND DESIGN METHODS 7 th Edition Whitten Bentley 訪談指南範例（續） © The Mc. Graw-Hill Companies, Inc. , 2007

SYSTEMS ANALYSIS AND DESIGN METHODS 7 th Edition Whitten Bentley 發現式雛型 建立一個小型並有代表性或可運作的使用者需求模型，如此 可發現或驗證那些需求 。 © The Mc. Graw-Hill Companies, Inc. , 2007

SYSTEMS ANALYSIS AND DESIGN METHODS 7 th Edition Whitten Bentley JRP 與會者 • • • 贊助人 會議引言人 使用者和管理者 書記 IT 職員 © The Mc. Graw-Hill Companies, Inc. , 2007

SYSTEMS ANALYSIS AND DESIGN METHODS 7 th Edition Whitten Bentley 典型的JRP會議房間配置 © The Mc. Graw-Hill Companies, Inc. , 2007