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The Pragmatic Programmer: From Journeyman to Master

by

The Pragmatic Programmer: From Journeyman to Master Cover

 

 

Excerpt

This book will help you become a better programmer.

It doesn't matter whether you are a lone developer, a member of a large project team, or a consultant working with many clients at once. This book will help you, as an individual, to do better work. This book isn't theoretical---we concentrate on practical topics, on using your experience to make more informed decisions. The word pragmatic comes from the Latin pragmaticus--"skilled in business"--which itself is derived from a Greek word meaning "to do." This is a book about doing.

Programming is a craft. At its simplest, it comes down to getting a computer to do what you want it to do (or what your user wants it to do). As a programmer, you are part listener, part advisor, part interpreter, and part dictator. You try to capture elusive requirements and find a way of expressing them so that a mere machine can do them justice. You try to document your work so that others can understand it, and you try to engineer your work so that others can build on it. What's more, you try to do all this against the relentless ticking of the project clock. You work small miracles every day.

It's a difficult job.

There are many people offering you help. Tool vendors tout the miracles their products perform. Methodology gurus promise that their techniques guarantee results. Everyone claims that their programming language is the best, and every operating system is the answer to all conceivable ills.

Of course, none of this is true. There are no easy answers. There is no such thing as a best solution, be it a tool, a language, or an operating system. There can only be systems that are more appropriate in a particular set of circumstances.

This is where pragmatism comes in. You shouldn't be wedded to any particular technology, but have a broad enough background and experience base to allow you to choose good solutions in particular situations. Your background stems from an understanding of the basic principles of computer science, and your experience comes from a wide range of practical projects. Theory and practice combine to make you strong.

You adjust your approach to suit the current circumstances and environment. You judge the relative importance of all the factors affecting a project and use your experience to produce appropriate solutions. And you do this continuously as the work progresses. Pragmatic Programmers get the job done, and do it well.

Who Should Read This Book?

This book is aimed at people who want to become more effective and more productive programmers. Perhaps you feel frustrated that you don't seem to be achieving your potential. Perhaps you look at colleagues who seem to be using tools to make themselves more productive than you. Maybe your current job uses older technologies, and you want to know how newer ideas can be applied to what you do.

We don't pretend to have all (or even most) of the answers, nor are all of our ideas applicable in all situations. All we can say is that if you follow our approach, you'll gain experience rapidly, your productivity will increase, and you'll have a better understanding of the entire development process. And you'll write better software.

What Makes a Pragmatic Programmer?

Each developer is unique, with individual strengths and weaknesses, preferences and dislikes. Over time, each will craft his or her own personal environment. That environment will reflect the programmer's individuality just as forcefully as his or her hobbies, clothing, or haircut. However, if you're a Pragmatic Programmer, you'll share many of the following characteristics:

  • Early adopter/fast adapter. You have an instinct for technologies and techniques, and you love trying things out. When given something new, you can grasp it quickly and integrate it with the rest of your knowledge. Your confidence is born of experience.
  • Inquisitive. You tend to ask questions. That's neat---how did you do that? Did you have problems with that library? What's this BeOS I've heard about? How are symbolic links implemented? You are a pack rat for little facts, each of which may affect some decision years from now.
  • Critical thinker. You rarely take things as given without first getting the facts. When colleagues say "because that's the way it's done," or a vendor promises the solution to all your problems, you smell a challenge.
  • Realistic. You try to understand the underlying nature of each problem you face. This realism gives you a good feel for how difficult things are, and how long things will take. Understanding for yourself that a process should be difficult or will take a while to complete gives you the stamina to keep at it.
  • Jack of all trades. You try hard to be familiar with a broad range of technologies and environments, and you work to keep abreast of new developments. Although your current job may require you to be a specialist, you will always be able to move on to new areas and new challenges.

We've left the most basic characteristics until last. All Pragmatic Programmers share them. They're basic enough to state as tips:

Care About Your Craft

We feel that there is no point in developing software unless you care about doing it well.

Think! About Your Work

In order to be a Pragmatic Programmer, we're challenging you to think about what you're doing while you're doing it. This isn't a one-time audit of current practices---it's an ongoing critical appraisal of every decision you make, every day, and on every development. Never run on auto-pilot. Constantly be thinking, critiquing your work in real time. The old IBM corporate motto, THINK!, is the Pragmatic Programmer's mantra.

If this sounds like hard work to you, then you're exhibiting the realistic characteristic. This is going to take up some of your valuable time---time that is probably already under tremendous pressure. The reward is a more active involvement with a job you love, a feeling of mastery over an increasing range of subjects, and pleasure in a feeling of continuous improvement. Over the long term, your time investment will be repaid as you and your team become more efficient, write code that's easier to maintain, and spend less time in meetings.

Individual Pragmatists, Large Teams

Some people feel that there is no room for individuality on large teams or complex projects. "Software construction is an engineering discipline," they say, "that breaks down if individual team members make decisions for themselves."

We disagree.

The construction of software should be an engineering discipline. However, this doesn't preclude individual craftsmanship. Think about the large cathedrals built in Europe during the Middle Ages. Each took thousands of person-years of effort, spread over many decades. Lessons learned were passed down to the next set of builders, who advanced the state of structural engineering with their accomplishments. But the carpenters, stonecutters, carvers, and glass workers were all craftspeople, interpreting the engineering requirements to produce a whole that transcended the purely mechanical side of the construction. It was their belief in their individual contributions that sustained the projects:

We who cut mere stones must always be envisioning cathedrals.

--- Quarry worker's creed

Within the overall structure of a project there is always room for individuality and craftsmanship. This is particularly true given the current state of software engineering. One hundred years from now, our engineering may seem as archaic as the techniques used by medieval cathedral builders seem to today's civil engineers, while our craftsmanship will still be honored.

It's a Continuous Process

A tourist visiting England's Eton College asked the gardener how he got the lawns so perfect. "That's easy," he replied, "You just brush off the dew every morning, mow them every other day, and roll them once a week."

"Is that all?" asked the tourist.

"Absolutely," replied the gardener. "Do that for 500 years and you'll have a nice lawn, too."

Great lawns need small amounts of daily care, and so do great programmers. Management consultants like to drop the word kaizen in conversations. "Kaizen" is a Japanese term that captures the concept of continuously making many small improvements. It was considered to be one of the main reasons for the dramatic gains in productivity and quality in Japanese manufacturing and was widely copied throughout the world. Kaizen applies to individuals, too. Every day, work to refine the skills you have and to add new tools to your repertoire. Unlike the Eton lawns, you'll start seeing results in a matter of days. Over the years, you'll be amazed at how your experience has blossomed and your skills have grown.

How the Book Is Organized

This book is written as a collection of short sections. Each section is self-contained, and addresses a particular topic. You'll find numerous cross references, which help put each topic in context. Feel free to read the sections in any order---this isn't a book you need to read front-to-back.

Occasionally you'll come across a box labeled Tip nn (such as Tip 1, "Care About Your Craft" on xix). As well as emphasizing points in the text, we feel the tips have a life of their own---we live by them daily. You'll find a summary of all the tips on a pull-out card inside the back cover.

Appendix A contains a set of resources: the book's bibliography, a list of URLs to Web resources, and a list of recommended periodicals, books, and professional organizations. Throughout the book you'll find references to the bibliography and to the list of URLs.

We've included exercises and challenges where appropriate. Exercises normally have relatively straightforward answers, while the challenges are more open-ended. To give you an idea of our thinking, we've included our answers to the exercises in Appendix B, but very few have a single correct solution. The challenges might form the basis of group discussions or essay work in advanced programming courses.

020161622XP04062001

Product Details

ISBN:
9780201616224
Preface:
Hunt, Andrew
Preface:
Thomas, David
Preface by:
Hunt, Andrew
Preface:
Hunt, Andrew
Author:
Hunt, Andrew
Author:
Thomas, David
Publisher:
Addison-Wesley Professional
Location:
Reading, Mass. :
Subject:
Vocational education
Subject:
Programming - General
Subject:
Computer programming
Subject:
Software Engineering - Programming and Languages
Copyright:
Edition Number:
1
Edition Description:
Trade paper
Series Volume:
no. HCFA
Publication Date:
October 1999
Binding:
TRADE PAPER
Grade Level:
Professional and scholarly
Language:
English
Illustrations:
Yes
Pages:
352
Dimensions:
9.1 x 7.3 x 0.9 in 612 gr

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Related Subjects


Computers and Internet » Computer Languages » The Attic
Computers and Internet » Software Engineering » General
Computers and Internet » Software Engineering » Object Oriented Programming
Computers and Internet » Software Engineering » Programming and Languages
Health and Self-Help » Health and Medicine » Medical Specialties

The Pragmatic Programmer: From Journeyman to Master New Trade Paper
0 stars - 0 reviews
$47.25 In Stock
Product details 352 pages Addison-Wesley Professional - English 9780201616224 Reviews:
"Synopsis" by , Using anecdotes, analogies, examples and parables, this user-friendly guide offers techniques for getting any programming job done effectively, and can help any programmer improve skills, no matter what level. Incorporates today's top languages, including Java, C, C++, and Perl.
"Synopsis" by , This working manual offers tips, tricks and guidance that can be used by all programmers of all levels. The focus is on creating pragmatic, functional code. The book is not concerned with creating elegant code, but on getting the job done.
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