Quality plays an important role in products and services for customer satisfaction and customer loyalty. Inspection is a function of quality discipline. An inspection is, most generally, an organized examination or formal evaluation activity.
Inspection tools, technologies, and methodologies have evolved in many fields including machine tooling, automotive products, food processing, pharmaceutical, chemical, and electrical and electronics products. In the past, visual inspection was more prominent using simple tools such as microscopes, rulers, Vernier calipers, micrometers, and gages.