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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.

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Price Summary

  • We started tracking this book on November 29, 2011.
  • This book was $19.79 when we started tracking it.
  • The price of this book has changed 173 times in the past 2,701 days.
  • The current price of this book is $38.28 last checked 9 hours ago.
  • This lowest price this book has been offered at in the past 90 days is $36.86.
  • This lowest price this book has been offered at in the past year is $35.09.
  • The lowest price to date was $19.79 last reached on April 6, 2012.
  • This book has been $19.79 2 times since we started tracking it.
  • The highest price to date was $46.79 last reached on January 23, 2018.
  • This book has been $46.79 3 times since we started tracking it.

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Additional Info

  • Publication Date: September 22, 2004
  • Text-to-Speech: Enabled
  • Lending: Disabled
  • Print Length: 458 Pages
  • File Size: 4,077 KB

We last verified the price of this book about 9 hours ago. At that time, the price was $38.28. This price is subject to change. The price displayed on the Amazon.com website at the time of purchase is the price you will pay for this book. Please confirm the price before making any purchases.