Test & Measurement is the process of measuring, controlling, and monitoring physical and electrical parameters to assess the performance, accuracy, and reliability of a product or system. This includes using instrumentation and various test methods, such as automated testing, manual testing, experimental testing, and vibration testing. Test & Measurement can help to ensure that a product or system meets requirements, functions as intended, and is safe and reliable. The data collected during testing can be used to make improvements to the design or process, and to detect any unforeseen issues.