Inspection is necessary to ensure the best quality products. Outside the world of industry, such as Bank, government agencies and the like, inspection will determine the performance quality of service to customers. In the world of traditional industry inspection process is the right choice to control the product in good condition. If you want a guaranteed product in accordance with the standards required then each process must have an inspector on duty to observe and select the product defective. If you can rework, returned the previous process, but if outside specifications should be in the exhaust. If there are 100 in the production process then how labor inspector must be provided. How much work to be done to rework? Is not this a waste that should be eliminated.