A bug in software testing is a mistake, flaw, or fault in a software program that results in it generating erroneous or unexpected output or behaving in unexpected manners. Bugs may arise because of coding errors on the part of the developers, design errors, wrong logic, or system integration issues. Bug detection and correction is an important aspect of the software testing process to make the product meet the desired quality level. Bugs may vary from small problems such as UI misalignment to severe errors that cause system crashes or reveal security flaws. Early bug detection through intense testing improves software reliability, functionality, and user satisfaction, minimizing the risk of failure in actual use.
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