It refers to the evaluation of a software application to find and correct defects, ensure it meets user requirements, and check its functionality, performance, and reliability. In other words, it is executing the software in controlled conditions so that issues may be found, and its behavior is validated against expected outcomes.
Testing is very essential because it makes sure that software quality is achieved, it reduces the chances of failures and increases user satisfaction since it provides dependable and working products. It reduces bugs in earlier stages of the development lifecycle to save time and cost. It also verifies if the software follows technical and business requirements to assure security, compatibility, and scalability.
It builds user confidence, minimizes financial and reputational risks, and supports continuous improvement, hence making it a vital component of successful software development. Software testing detects vulnerabilities and ensures proper operation.
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