Testing is a systematic process used to evaluate functionality, performance, and reliability of systems, processes, or products. It involves defining objectives, selecting methods, creating test cases, and executing trials to gather measurable evidence that informs decisions and improvements. Effective testing emphasizes repeatability, documentation, and objective metrics. Results are analyzed to identify defects, risks, and areas for optimization. Iterative cycles and controlled environments help validate changes and ensure outcomes meet defined criteria before wider deployment.
