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Title: Function Point Analysis: Measurement Practices for Successful Software Projects (Addison-Wesley Information Technology Series) by David Garmus, David Herron ISBN: 0-201-69944-3 Publisher: Addison-Wesley Pub Co Pub. Date: 15 December, 2000 Format: Paperback Volumes: 1 List Price(USD): $44.99 |
Average Customer Rating: 4.67 (3 reviews)
Rating: 5
Summary: One of a Kind
Comment: Why buy this book? Because it's the ONLY up-to-date book on Function Points. If you need more reasons read the other reviews. You may also want to buy the IFPUG Counting Practices Manual - the official reference - directly from the International Function Point Users Group.
Rating: 4
Summary: An excellent companion through the complete process
Comment: This is a really useful book. It's a must if you need to look deep into the Function Point Analysis and get a clear understanding of what this is all about. As a professional and local instructor in Function Point Analysis I've got a lot of inspiration from this book for my course. I believe that beginners would gain even more from this book, however. It covers all topics from the current IFPUG Function Point Counting Practices Manual (release 4.1). It guides you all the way through the whole process and presents a lot of examples and additional explanations on the way.
Beside the operational guidelines this book also describe the Function Point Analysis in the perspective of related topics as e.g. estimation and benchmarking. Those topics are covered very thoroughly as well and the book provides a good insight in how Function Points can be used as a management tool.
In the last chapters "hot issues" as applying Function Points to GUI applications and OO-system development are discussed. Some very useful guidelines are presented here, indeed. But it's my personal experience that mapping OO components to the Function Point concept might be quite more challenging that the book indicates.
Rating: 5
Summary: Excellent Description and Great for CFP Candidates
Comment: This is an authoritative book by two authors who have a published a large number of articles on the subject.
Function point analysis is, in both my experience and opinion, one of the most accurate estimating tools a software engineer has at his or her disposal. I have previously used the constructive cost model (COCOMO) through version 2, Raleigh curves, and hybrids such as Software Estimation Analysis Tool, which computes both COCOMO and function point statistics. Granted, not all of these estimating models are equal - the Raleigh curve approach has a focus on quality and manpower loading that the others lack. But each (and many I have not cited) are estimating tools for software development.
My experience shows function point analysis to be the most accurate - if done correctly. Therein lies the crux of the matter. Function point analysis, in order to yield accurate estimates of effort, needs to be performed by certified counters and the resulting data needs to be properly interpreted. That's where this book comes in.
It starts with an overview that serves as an understandable introduction for someone who is new to software estimation, yet is interesting enough to hold the attention of more experienced professionals. The advice on preparing for IFPUG (International Function Point User Group) certification is a highlight and underscores the fact that FP counting should only be performed by certified counters.
The chapters on software measurement and executive introduction to function points are really extensions of the introduction. I found both the software measurement model in this chapter, and how to establish a world class measurement program interesting and informative.
This segues into three chapters that cover measuring and using function points, and industry benchmarks. Some highlights are the way the authors tie function points to key performance indicators such as productivity, quality, financial and maintenance. I also liked the way that the authors stratify the users of function point data into project managers, IT managers and cross-organizational stakeholders. I was particularly interested in the last group because I am often involved in both service and application delivery projects. The use of function points as a basis for service level metrics and outsourcing is an intriguing idea that I will explore further.
When you arrive at chapter 6 the foundation built in the first five chapters prepare you for a detailed, methodical approach to performing function point analysis. This is straightforward and appears to be completely consistent with IFPUG. All you need to know about function point analysis is, in my opinion, provided in the remainder of the book. The material is augmented by case studies, and also addresses contemporary issues such as applying function point analysis to object-oriented, web, client/server and data warehouse applications. While each of these topics are not given in-depth treatment the fact that they are addressed at all is impressive. The authors end the book with advice on preparing for the certified function point specialist exam, and gives sample exam questions. They also provide sample worksheets in the appendices.
This book merits a solid five stars because it is well written, up-to-date and follows IFPUG recommendations. If you are pursuing CFP certification this book will simplify your life. If you want to learn about an effective software estimating technique this book is a great starting point. To be completely fair, if you are new to software estimation you should also read Estimating Software Costs (Caspers Jones), which gives a complete and unbiased survey of all of the major (and some obscure) software estimating approaches.
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