And refactoring is part of the TDD cycle. Refactoring. Agile software development is all about constantly changing to meet evolving business and technical demands, so refactoring your code is a core part of Agile. Thus, in this course you will learn the various “code smells” and the refactorings to clean them up. Figure 3. 4.1.1 Verify that a Database Refactoring is Required The first thing that the Agile DBA does is they'll try to determine if the database refactoring even needs to occur and if it is the right one to perform. The process of database refactoring. As we add more functionality to the system we need a way of maintaining our design and keeping our house in order. In Agile we call this refactoring. Refactoring is modifying the internal structure of code without changing its behaviour. Use of Refactoring: Refactoring is used in Agile software development to create and maintain code clarity and extensibility. The term was first introduced as 'factoring' by Leo Brodie in 1984. Refactoring improves the structure of the design of a system to allow for later extensions or to make maintenance easier. Refactoring software to make it maintainable and extendable has become a recognized best practice and has been incorporated into many Agile practices such as Scrum, TDD and XP. What are they? Importance of refactoring. Refactoring is a disciplined design skill to improve the structure of code without changing its external behavior. All functional tests should pass with … Code refactoring provides a way to simplify your code without changing what it does. Benefits of Refactoring: 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 improves its internal structure," according to Martin Fowler, the "father" of refactoring. Refactoring and technical debt are important concepts, especially so in agile software development. 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refactoring in agile

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