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The Role of Business Case Analysis in Software Engineeri：商业案例分析在软件工程中的作用
October 2005 Copyright RCI, 2005 The Role of Business Case Analysis in Software Engineering Lecture #1 Donald J. Reifer Guest Lecturer USC Center for Software Engineering Why Write a Book on Software Business Cases? Over the years, I have observed that many software engineers don’t know how to justify proposed changes or improvements using either economic analyses methods or business cases In many of these cases, these engineers are trying to justify changes technically to managers who come from a non-technical background (financial, marketing, etc.) The book was written to serve as a textbook for teaching software engineers to win the battle of the budget For Software, Change is Constant Business Cases Quantify the Impact of Such Changes As understood by most, engineering decisions involve many options and difficult tradeoffs May be several technical solutions for the problem The best technical solution is determined by evaluating the tradeoffs using a variety of criteria selected for that purpose Software engineering provides you the methods and tools to understand the tradeoffs and select the best answer (typically under constraints) Management rejects many of these recommendations because the business benefits are not quantified Pervasive Issues When Developing Business Justifications Common definition of costs and benefits not widely accepted across the industry Productivity, cost and quality data considered highly confidential and kept secret Common definition of the justification processes involved lacking within the engineering community Difficult to attribute resulting numbers to one cause or another Hard to communicate results - engineers talk technical, decision-makers talk business Goal of the lecture is to help you communicate better What Are we Going to Cover? Part I - Fundamental Concepts Chapter 1: Improvement is Everybody’s Business Chapter 2: Making a Business Case Chapter 3: Making the Business Case: Principles, Rules, and Analysis Tools Chapt
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