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Professional Software Development: Shorter Schedules, Higher Quality Products, More Successful Projects, Enhanced Careers Paperback – July 10, 2003

ISBN-13: 978-0321193674 ISBN-10: 0321193679 Edition: 1st

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Product Details

  • Paperback: 272 pages
  • Publisher: Addison-Wesley Professional; 1 edition (July 10, 2003)
  • Language: English
  • ISBN-10: 0321193679
  • ISBN-13: 978-0321193674
  • Product Dimensions: 9.3 x 7.1 x 0.7 inches
  • Shipping Weight: 1.2 pounds (View shipping rates and policies)
  • Average Customer Review: 3.7 out of 5 stars  See all reviews (22 customer reviews)
  • Amazon Best Sellers Rank: #71,646 in Books (See Top 100 in Books)

Editorial Reviews

Excerpt. © Reprinted by permission. All rights reserved.

It looks obvious until you try it.
—IEEE Software

My flight was waiting on the runway when the captain made an announcement. "We've had some trouble with the plane's air conditioning system. In a plane, the air conditioner controls the oxygen levels so we need to make sure it's working before we can take off. Restarting the air conditioning unit hasn't worked, so we're going to power down the aircraft and power it back on. These modern airplanes are all computer controlled, you know, so they're not very reliable."

The pilot powered down the airplane, powered it back up—essentially, rebooted the airplane—and our flight continued without incident. Needless to say, I was especially glad to deplane at the end of that particular trip.

The Best of Times, the Worst of Times

The best software organizations control their projects to meet defined quality targets. They accurately predict software delivery dates months or years in advance. They deliver their software projects within budget, and their productivity is constantly improving. Their staff morale is high, and their customers are highly satisfied.

  • A telecom company needed to change about 3,000 lines of code in a code base of about 1 million lines of code. They made their changes so carefully that a year later no errors had been found in operation. Their total time to make the changes—including requirements analysis, design, construction, and testing--was 9 hours.
  • A team developing software for the United States Air Force committed to a one-year schedule and a $2 million budget even though other credible bids for the project had run as high as two years and $10 million. When the team delivered the project one month early, the project manager said the team's success arose from using techniques that have been known for years but that are rarely used in practice.
  • An aerospace company develops software for companies on a fixed-price basis. Three percent of its projects overrun their budgets; ninety-seven out of a hundred meet their targets.
  • An organization that committed to achieving outstanding quality attained an average of 39 percent reduction in its post-release defect rate every year for a period of 9 years—a cumulative reduction of 99 percent.
  • In addition to these notable successes, software pumps billions of dollars into the economy every year, both directly through sales of software itself and indirectly through improved efficiency and through creation of products and services that are made possible only with software's support.

    The practices needed to create good software have been well established and readily available for 10 to 20 years or more. Despite some amazing triumphs, however, the software industry is not living up to its full potential. There is a wide gulf between the average practice and the best, and many of the practices in widespread use are seriously outdated and underpowered. Performance of the average software project leaves much to be desired, as many well-known disasters will attest.

  • The IRS bumbled an $8 billion software modernization program that cost the United States taxpayers $50 billion per year in lost revenue.
  • The FAA's Advanced Automation System overran its planned budget by about $3 billion.
  • Problems with the baggage handling system caused a delay of more than a year in opening Denver International Airport. Estimates of the delay's cost ranged as high as $1.1 million per day.
  • The Ariane 5 rocket blew up on its maiden launch because of a software error.
  • The B-2 bomber wouldn't fly on its maiden flight because of a software problem.
  • Computer-controlled ferries in Seattle caused more than a dozen dock crashes, resulting in damage worth more than $7 million. The state of Washington recommended spending more than $3 million to change the ferries back to manual controls.
  • Many projects that are lower profile than these are equally troubled. Roughly 25 percent of all projects fail outright,12 and the typical project is 100 percent over budget at the point it's cancelled. Fifty percent of projects are delivered late, over budget, or with less functionality than desired.

    At the company level, these cancelled projects represent tremendous lost opportunity. If projects that are ultimately cancelled could be shut down at 10 percent of their intended budgets rather than 200 percent, imagine what a company could do by redirecting those resources at projects that were not ultimately cancelled.

    At the national level, cancelled projects represent prodigious economic waste. A rough calculation suggests that cancelled software projects currently impose about a $40 billion drain on the United States economy.

    When projects succeed, they can still present risks to the public safety or welfare. A project lead at Lotus received a call from a surgeon who was using a spreadsheet to analyze patient data during open-heart surgery. Newsweek magazine printed pictures of soldiers using Microsoft Excel on laptop computers to plan operations, and the Excel technical support team has received calls from the battlefield during active military operations.

    The Purpose of This Book

    Software development can be predictable, controllable, economical, and manageable. Software isn't usually developed that way, but it can be developed that way. This book is about the emerging profession of software engineering—and professional software practices that support economical creation of high-quality software.

    The essays in this book address questions like these:

  • What is software engineering?
  • How does software engineering relate to computer science?
  • Why isn't regular computer programming good enough?
  • Why do we need a profession of software engineering?
  • Why is engineering the best model for a software development profession?
  • In what ways do effective practices vary from project to project (or company to company), and in what ways are they usually the same?
  • What can organizations do to support a professional approach to software development?
  • What can individual software developers do to become full-fledged professionals?
  • What can the software industry as a whole do to create a true profession of software engineering?
  • How This Book Is Organized

    The parts in this book progress from looking at the trade of computer programming as it exists today to exploring the profession of software engineering as it might exist in the future.

    Part 1, The Software Tar Pit, explains how the software field got to be the way it is. There are many valid reasons why the software field came to its current state. Understanding those reasons should be used to accelerate, not delay, the changes needed to make successful projects an everyday habit.

    Part 2, Individual Professionalism, looks at the steps individuals can take on their own to achieve higher levels of software professionalism.

    Software projects are so complex that numerous key factors cannot be addressed effectively at the individual level. Part 3, Organizational Professionalism, digs into the organizational practices needed to support more professional software projects.

    Part 4, Industry Professionalism, examines steps that must be taken by the software industry at large to support professionalism at the individual and organizational levels.

    What I've Learned Since 1999

    Professional Software Development is an updated and significantly expanded edition of my 1999 book, After the Gold Rush. Since 1999, I've learned several lessons that are reflected in this new edition:

  • Licensing of software developers is more controversial than I expected. I still think that licensing a small percentage of software engineers is an important step toward protecting the general public's safety and welfare. I have tried to clarify that licensing is only one of many initiatives needed to improve the software development profession, and not the most important one.
  • Education of software engineers does not have to be tightly linked to licensing. Undergraduate and graduate educational programs can seek to instill an engineering mindset in software developers without necessarily preparing them to become licensed professional engineers. Indeed, if fewer than five percent of software developers are eventually licensed—which seems likely—targeting the majority of educational programs at licensing seems misguided.
  • The world didn't fall apart on January 1, 2000. Although I didn't think Y2K would be catastrophic, I did believe that Y2K-related problems would be more significant than they were. The software industry's repair efforts turned out to be far more effective than I expected. Beyond that, the Y2K problem itself was in some sense a result of successful software development practices. Y2K would not have been an issue in the first place if so many software systems had not survived longer than their originally expected lifespans.
  • Modern software development is truly impressive in many respects, and any comments about professionalizing the field of software development should account for software's numerous successes. We must be careful not to throw out the field's better practices as we try to strengthen the weaker ones.
  • Who Should Read This Book

    If you develop software for a living, this book will explore what you need to do to become a truly professional software developer.

    If you manage software projects, this book will summarize the differences between poorly run and well run software projects and overview what you can do to make your projects more successful.

    If you manage a software organization, this book will outline the benefits available from systematic approaches to software development and sketch what you need to do to realize those benefits.

    If you are a student who wants to work in the software field


    More About the Author

    I am founder and CEO at Construx Software (www.construx.com). I've written Code Complete, Software Estimation, Rapid Development, Software Project Survival Guide, and Professional Software Development. I live in Bellevue, WA.

    Customer Reviews

    No dice...just 'here's how we do it, and it's the right way.'
    Justin M. Stroud
    Speaking of which, the second thing I saw is that he does not appear to know much about Francis Bacon other than as a source of pretentious quotations.
    S. Matthews
    A great deal of insight into the software development industry can be gained by reading this book.
    A. Noel

    Most Helpful Customer Reviews

    34 of 37 people found the following review helpful By Damon Carr on February 18, 2004
    Format: Paperback
    In this single book, Mr. McConnell has managed to summarize all of the arguments for 'building software the right way'. It is non-intuitive to individuals who have little or no training in software engineering, including programmers. When I used to interview VB programmers my first question was always 'Describe the Implements keyword'.

    For many business people they feel that if you are not coding then you are not making progress, which is just plain wrong if you are in the early stages of a project. This often puts us (as project leaders) in the position of educating the client. This book is incredibly helpful for just such an endeavor. There are so many great points that I have used in helping me overcome the non-intuitive parts of development.

    The statistics for our industry are abysmal (in terms of budgets over-runs, cancelled projects, etc.). If everyone read this book, and stopped coding for a few hours and actually THOUGHT more about the problem (especially for OO development - doing UML, CRC Cards or SOMETHING) in my opinion (after coding for 20 years - 13 of them professionally) our industry would be in much better shape. Even better would be if you can get your team using design patterns, pair programming (in many cases this is a good idea but not in all), agile development techniques, and other general `best practices'.

    I am constantly under pressure to code before it is appropriate to do so. It is hard to explain to a CEO that you need time to do what they believe is 'drawing pretty pictures'.
    Read more ›
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    27 of 32 people found the following review helpful By A Customer on December 23, 2003
    Format: Paperback
    This book is a brilliant, enjoyable explanation of the steps we can take to make our projects and software organisations run better.

    To realize the benefit of this book, you must actually Read The Book, which some of the other amazon reviewers have apparently not yet been able to fit into their busy schedules. The reviewer of 'examples of bad management' never read past the first section, which is called 'The Software Tarpit.' It is indeed about why projects are poorly managed, but it is only 55 pages out of 225. Sections 2, 3 & 4 contain abundant specific suggestions about how to meet schedules, budgets, and other project goals.

    The reviewer of 'heavy on opinion, light on content' says he reads 5 books a day. The book has numerous notes at the end of each chapter, and is impressively well researched. I surmise this reviewer missed the 'content' during his speed reading.

    The reading-impaired agile revolutionaries criticise the book for not discussing agile. This book also does not discuss object-oriented design, the Rational Unified Process, East Indonesian basket weaving, or the tooth fairie because those are different topics. Apparently some people think that every book should discuss agile, regardless of the book's topic.

    This book is short, sweet, and to the point. It does not tell you how to debug your current project (see the author's Code Complete for that), but it will tell you how you and your organisation can improve in the long run. My company has already realised benefits from adopting the ideas in this book, and it is mandatory reading for programmers and managers.
    Comment Was this review helpful to you? Yes No Sending feedback...
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    14 of 16 people found the following review helpful By Justin M. Stroud on February 9, 2006
    Format: Paperback
    This book is a respectable endeavor, to be sure...the title itself makes it sound as if it's going to somehow define a profession in a way that makes us all known quantities. Isn't that what we like to work with anyways? Known quantities? Measurable results?

    Unfortunately, there's a critical piece missing: while McConnell throws us some useful practices regarding the definition of our craft and the further measurement of our knowledge, it all sounds like a heap of pet theories and practices that never quite gel into something you can sink your teeth into.

    Take for example his chapter devoted to the rigid, complex system he uses in his own company to measure the skill levels of its employees. I looked at it, read the different 'grades', but at the end wanted to know exactly how in practice this made their practice more effective. No dice...just 'here's how we do it, and it's the right way.' No why. No when. No who.

    I lost a bit of respect for McConnell after reading this book...Code Complete is a landmark, but after reading

    Professional Software Development I felt like he's lost his way amidst the mountains of white papers and the multitudes of 'best-practices.'
    Comment Was this review helpful to you? Yes No Sending feedback...
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    16 of 19 people found the following review helpful By Jeff Olson on September 5, 2003
    Format: Paperback
    This book explains what people, companies, and the software industry need to do to become more professional. The "Cargo Cult Software Engineering" essay was one of the best I've read -- great distinction between competence vs. work style. I enjoyed the chapter on personal attributes of programmers -- it helped to explain some of the programmers I've had trouble getting along with. The chapter about Construx's professional development program was useful too, and I'm going to try to adapt parts of that to use in my own company.
    McConnell lays out what can be done at the individual level to become more professional, both now and in the future when educational programs become more readily available. The chapter on "quantifying personnel factors" was great -- McConnell clearly understands that software is produced by PEOPLE, and people have to come first.
    There is also lots to do at the organizational level, most of which can be done right now. I agree with his argument that good people will naturally want to use good practices, and so the best organizations will want both good people and good practices. How to fully support people working at a truly professional level is the key question.
    Overall, if you want to understand why sometimes software projects work and sometimes they fail, and if you want to understand what to do to make them succeed every time, this is a great book. Two enthusiastic thumbs up!
    Comment Was this review helpful to you? Yes No Sending feedback...
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