The importance of Code Refactoring in Software

  • What does refactoring mean in software?
  • What are the benefits of software refactoring?
  • When should a code be refactored?
  • What is the Refactoring Process Like?
  • What are common Refactoring Techniques?
  • Tizbi Refactoring Examples

What Does Refactoring Mean in Software?

As a program is written, it gets passed from programmer to programmer, all of whom take on the challenge with their own style and preferred libraries. The resulting program starts taking a shape more resembling Frankenstein’s monster than the neat, easily digestible code it was meant to be.

What are the benefits of software refactoring?

As expressed above, the benefits of software refactoring are not always obvious because refactoring is a proactive approach for preventing IT issues. However, while they are harder to notice, the benefits of this technique are enormous.

  • Make everything easier: Cleaning up a code makes it easier to understand, catch bugs, and run new features.
  • Clean up and build simultaneously: Refactoring allows the implementation of new features in tandem with clean-up of the old program.
  • Remove code smell: Get rid of any lingering bad practices inserted in your code throughout the development.
  • Improve customer experience: The code will operate smoother and generate quicker responses as it performs.
  • Reduce Technical debt: An efficient and fresh code will save your company from future breaks and major expenses.
  • Keeps your code relevant: Replace outdated libraries and elements with newer more relevant ones.
  • Catch bugs: Refactoring makes it easier for a programmer to find the source of a problem, fix said problem, and prevent future breaks.

When should a code be refactored?

Hopefully, we’ve convinced you of the gain of software refactoring. However, is there a time in a code’s lifecycle where it is more vital to practice refactoring?

What is the Refactoring Process Like?

The first step of the process is to decide whether refactoring is the right solution for your project. Here are some tells that it is time to refactor your software:

What are common Refactoring Techniques?

There are several possible approaches for heading a software refactoring project. It is essential to pick a strategy that is compatible with the end goals of your company’s efforts.

  • Red-Green Refactoring: This is one of the most popular forms of software refactoring that is in line with the agile philosophy. This method revolves around writing simple code and testing it. The process starts with a “red test” and analyzing where the code is failing. From this point, the code is corrected until it gets a “green test.” This signifies that the code works as needed. Following the green test, the code is refactored, cleaned, and optimized without compromising existing features. The nature of this approach is that it is an ongoing cycle of testing and refactoring.
  • Branching by Abstraction: This technique is often incorporated in large-scale refactoring projects. The main point of this method of refactoring is to remove redundancies within the software application’s code. An abstraction layer is used on the parts of the software system that needs refactoring. Eventually, the abstraction layer is replaced with the complete refactored code.
  • Moving Features Between Objects: This technique moves classes around as the refactoring process occurs and hides them from a public access view.
  • Preparatory Refactoring: This method of refactoring allows you to save on technical debt in future feature implementations. The essence of preparatory refactoring is to refactor in advance, typically when working on a different piece of the code and noticing an area that would benefit from some clean-up. It is not yet a major ordeal, but tackling it will save a company from strife and expenses in the future. In other words, switching out an old tire on your car before you have a chance to get a flat.
  • Composing Method: This refactoring approach is compatible with a situation when code methods are excessively long. Composing refactoring strategies are incorporated to remove the redundancies inside a code. For example, extraction, which breaks down the code into smaller pieces and inline, which takes out the redundant method parts.
  • User Interface Refactoring: This refactoring method approaches changes from the user interface. Implementing small changes to UI and subtle refactoring improves the code as a whole.

Tizbi Code Refactoring Examples

Code Refactoring Example 1: Crumbs Media



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Tizbi, Inc.

Tizbi, Inc.

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