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Working Effectively with Legacy Code Paperback – 22 Sep 2004

4.3 out of 5 stars 20 customer reviews

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Frequently bought together

  • Working Effectively with Legacy Code
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  • Clean Code: A Handbook of Agile Software Craftsmanship (Robert C. Martin)
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Product details

  • Paperback: 456 pages
  • Publisher: Prentice Hall; 01 edition (22 Sept. 2004)
  • Language: English
  • ISBN-10: 0131177052
  • ISBN-13: 978-0131177055
  • Product Dimensions: 17.5 x 2.5 x 23.4 cm
  • Average Customer Review: 4.3 out of 5 stars 20 customer reviews
  • Amazon Bestsellers Rank: 63,677 in Books (See Top 100 in Books)
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Product description

Synopsis

This book provides programmers with the ability to cost effectively handlecommon legacy code problems without having to go through the hugelyexpensive task of rewriting all existing code. It describes a series of practicalstrategies that developers can employ to bring their existing softwareapplications under control. The author provides useful guidance about how touse these strategies when refactoring or making functional changes to codebases. One of the book's key points is that it teaches developers to write teststhat can be used to make sure they are not unintentionally changing theapplication as they optimize it. Examples are provided in Java, C++, and Csharp,and the book assumes that the reader has some knowledge of UMLnotation. Strategies using UML and code in C++ and Java primarily whilelanguage independent advice will be delivered in side bars and appendices forlanguage specific users.

From the Back Cover

Get more out of your legacy systems: more performance, functionality, reliability, and manageability

Is your code easy to change? Can you get nearly instantaneous feedback when you do change it? Do you understand it? If the answer to any of these questions is no, you have legacy code, and it is draining time and money away from your development efforts.

In this book, Michael Feathers offers start-to-finish strategies for working more effectively with large, untested legacy code bases. This book draws on material Michael created for his renowned Object Mentor seminars: techniques Michael has used in mentoring to help hundreds of developers, technical managers, and testers bring their legacy systems under control.

The topics covered include

  • Understanding the mechanics of software change: adding features, fixing bugs, improving design, optimizing performance
  • Getting legacy code into a test harness
  • Writing tests that protect you against introducing new problems
  • Techniques that can be used with any language or platform―with examples in Java, C++, C, and C#
  • Accurately identifying where code changes need to be made
  • Coping with legacy systems that aren't object-oriented
  • Handling applications that don't seem to have any structure

This book also includes a catalog of twenty-four dependency-breaking techniques that help you work with program elements in isolation and make safer changes.


© Copyright Pearson Education. All rights reserved.

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From the Publisher

Clean Code Clean Coder Architecture Software Craftsman Legacy Code
A Handbook of Agile Software Craftsmanship Practical Advice for the Professional Programmer A Craftsman's Guide to Software Structure and Design Professionalism, Pragmatism, Pride Get Better Performance Out of Your Legacy Systems
Core Concept Best agile practices of cleaning code “on the fly” that will instill within you the values of a software craftsman and make you a better programmer—but only if you work at it. Robert C. Martin introduces the disciplines, techniques, tools, and practices of true software craftsmanship. This book is packed with practical advice–about everything from estimating and coding to refactoring and testing. Uncle Bob presents the universal rules of software architecture that will help you dramatically improve developer productivity throughout the life of any software system. Sandro Mancuso helped found the world’s largest organization of software craftsmen; now, he shares what he’s learned through inspiring examples and pragmatic advice you can use in your company, your projects, and your career. Is your code easy to change? Can you get instantaneous feedback when you do change it? Do you understand it? If the answer to any of these questions is no, you have legacy code, and it is draining time and money away from your development efforts.
Endoresement "It is the best pragmatic application of Lean principles to software I have ever seen in print." —James O. Coplien, Founder of the Pasteur Organizational Patterns project “Read, learn, and live the lessons in this book and you can accurately call yourself a software professional.” —George Bullock Senior Program Manager Microsoft Corp. "A good architecture comes from understanding it more as a journey than as a destination, more as an ongoing process of enquiry than as a frozen artifact." -- Kevlin Henney "If you are the type of programmer, team lead, or manager who craves to be able to go home after a long day of work, look in the mirror, and say, 'Damn, I did a good job today!' then this is the book for you." -- Robert C. Martin "This book describes a set of disciplines, concepts, and attitudes that you will carry with you for the rest of your career and that will help you to turn systems that gradually degrade into systems that gradually improve." --- Robert C. Martin

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