Explained Defect, Bug, Error, and Failure in Software Testing |
Explained Defect, Bug, Error, and Failure in Software Testing | #softwaretesting #infobystnk
Defect
A defect is any issue in the software that causes it to behave incorrectly or fail to meet the specified requirements. It can be caused by a fault in the code, design, or system.
Example: A button on a website not working as intended could be a defect.
Bug
A bug is a term commonly used for an unintended problem or flaw in the software code. Bugs are typically discovered during testing and can range from minor glitches to critical failures.
Example: A crash when clicking a particular menu item in an application is a bug.
Error
An error refers to a mistake made by the developer or tester, often in the code or during the execution of the program. It can lead to incorrect outputs or unexpected behavior.
Example: A syntax error in the code, such as missing parentheses or incorrect variable names, is an error.
Failure
A failure occurs when the software does not perform as expected or does not meet its functional or non-functional requirements. This happens when the software’s behavior deviates from the desired or expected outcome, often due to defects or bugs.
Example: A mobile app failing to load after an update is a failure.
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