Refactoring Legacy Code
Development teams constantly make decisions between building software right and building software fast. Even though building it right (quality) is always paramount, at times development teams compromise quality to gain speed (build fast). Rushing delivery of a feature or user story without ever going back to refactor the code to express your learnings leads to technical debt. In layman terms, it is like cutting corners to meet deadlines.
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Some teams postpone improvement work. There is an increasing cost of delay due to technical debt. Moreover, postponing improvement to a later point in time is a sign of waterfall mindset. Some teams plan for a refactoring sprint or stabilization sprint or any other name they want to put but all of them boil down to doing major changes without any business value. This course will help attendees understand these aspects and gives them hands on experience with refactoring.
- Understanding that avoiding/reducing technical debt is not a choice for the team but it’s a responsibility they have every sprint.
- Preferring not to make any big bang refactoring to reduce technical debt. More often they will not result the desired outcome as they involve a higher risk of dealing with uncertainty.
- Understanding and experiencing how to continuously refactor even with complicated legacy code.
• The importance of refactoring:
• The definition of refactoring
• Lehman’s law of increasing complexity
• Technical debt
• Dealing effectively with legacy code
• The definition of legacy code.
• Working with feedbacks
• Legacy code dilemma
• Identify change points
• Find tests points
• Make the code testable (break dependencies)
• Write the right tests
• Hands-on exercise
- This course is intended for software developers and teams who have struggled or are struggling with legacy code. Basic knowledge of writing unit tests is required.
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