Validation is a systematic and documented process of confirming that a system, process, or product meets specified requirements and operates according to its intended purpose. Validation ensures that a system or product performs as expected, produces accurate and reliable results, and complies with relevant regulations and standards. It involves planning, executing, and documenting validation activities, which may include testing, inspection, analysis, and verification against predefined acceptance criteria. Validation is particularly important in regulated industries, such as pharmaceuticals and medical devices, where it is essential to demonstrate that systems and processes consistently meet quality and safety standards.