Debugging is the identification and resolution of existing and potential issues in software or hardware. Examples of these issues include faulty code (such as source code with logic errors) and manufacturing defects. The debugging process typically involves three steps:

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1. Identifying bugs: During the first stage of the debugging process, end users, quality assurance (QA) testers, and developers report bugs. They may find these problems through testing processes, reviewing lines of code, or simply by using the software or device. 

2. Analysing bugs: At this phase, the reported bugs from step one are evaluated. Important elements to consider include how the bug impacts the functionality and which parts of the software or hardware will be affected by it. The developers then prioritise bug fixes and create an action plan and timeline for fixing. 

3. Fixing bugs and preparing for the future: Once the bugs have been fixed, developers and QA testers ensure the software will continue to work properly by running tests. They also plan future tests to identify recurring bugs more easily.

Often, software tools come with features to aid users in the process of debugging (debuggers). 

Debugging vs testing: What's the difference?

Testing is one part of the debugging process. Debugging involves correcting the issues found during testing. QA testers and end users may test software, but developers typically troubleshoot and resolve the reported errors to finish the debugging process. 

Related terms

• QA tester

• IT infrastructure

• Test cases

• Social engineering

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Debugging is the process of finding and fixing errors (bugs) in software or hardware. It involves identifying the bug, analysing its impact, fixing it, and testing to prevent future occurrences. Debuggers are software tools that aid in this process. While testing helps identify bugs, debugging focuses on resolving them.

If you’re ready to get started in a cybersecurity career, consider enrolling in the Google Cybersecurity Professional Certificate on Coursera. Practise debugging code and automating cybersecurity tasks using Python. This programme is designed ​​to help individuals with no previous experience find their first job in the cybersecurity field, and you can complete it all at your own pace. 

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Google UX Design

Get on the fast track to a career in UX design. In this certificate program, you’ll learn in-demand skills, and get AI training from Google experts. Learn at your own pace, no degree or experience required.

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1,176,619 already enrolled

Beginner level

Learn More

Average time: 6 month(s)

Learn at your own pace

Skills you'll build:

User Experience, Wireframe, User Experience Design (UXD), Prototype, UX Research, User Experience (UX), Figma, mockup, Usability Testing, UX design jobs