What Is Defect In Software Testing

In software testing, a defect is a flaw, error, or fault in a software application that causes it to deviate from its intended behavior or functionality. A defect is an imperfection in the software that affects its usability, reliability, performance, or security. Defects can occur in any phase of the software development lifecycle, such as design, coding, testing, or deployment.

Examples of defects in software include:

• Missing or incorrect functionality
• Input validation errors
• Logical errors
• Performance issues
• Security vulnerabilities
• User interface issues
• Compatibility issues

Defects are usually classified based on severity and priority. Severity is a measure of how serious the defect is, while priority is a measure of how quickly the defect needs to be addressed. Defects with high severity and priority are given top priority and are addressed immediately to avoid any adverse impact on the software’s functionality and reputation.

Defects are identified through various testing techniques, such as functional testing, regression testing, and user acceptance testing. Defect-tracking tools are used to record, track, and manage the defects detected during the testing process. Once a defect is identified, it is reported to the development team for fixing and retesting.