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Refactoring: Improving the Design of Existing Code Don Roberts, John Brant, Kent Beck, Martin Fowler, William Opdyke
Publisher: Addison-Wesley Professional

Martin, “SRP: The Single Responsibility Principle”, http://www.objectmentor.com/resources/articles/srp.pdf. When you find you have to add a feature to a program, and the program's code is not structured in a convenient way to add the feature, first refactor the program to make it easy to add the feature, then add the feature. In this post I'll discuss some of the disadvantages of modules, and suggest that Ruby programmers should see them as a method of last resort for code sharing only after carefully considering alternative approaches such as creating classes. Guided by Tests” location 1258; M. Object oriented development was starting to come into it's own. Ξ April 28th, 2011 | → Comments Off | ∇ Books |. Once upon a time, a consultant made a visit to a development project. Fowler, “Refactoring: Improving the Design of Existing Code” location 3320; B. Beck, “Refactoring: improving the design of existing code”, Addison Wesley Longman, 1999, pp.238 – 240. Move the field to the superclass.（2）Pull Up MethodYou have methodswith identical results on subcl. Chapter 11 Dealing with Generalization（1）Pull Up FieldTwo subclasseshave the same field. Preface from the book 'Refactoring: Improving the Design of Existing Code'. Refactoring: Improving the Design of Existing Code. Refactoring is the process of changing a software system in such a way that it does not alter the external behavior of the code yet improve its internal structure. Dating allllll the way back to 1999. The concept of 'Code smells' was popularized by Kent Beck and Martin Fowler in the book 'Refactoring: Improving the Design of Existing Code' (ISBN 978-0201485677). April 28, 2011 § Refactoring: Improving the Design of Existing Code, by Martin Fowler.