Control PlansDescribe all operations used to control the quality of products all along the process, from receipt of parts and material to product shipment. This is established for each component, sub-assembly and product.The "Product Quality Control Specification" describes the specifications sorted by criticality and expected quality levels. The global control plan describes how each specification will be taken into account. It cannot be disassociated from the specifications and has to be managed as a reference document. Control operations could be: Statistical process control (SPC) Poka yoke designs such as tooling, fixturing, etc. Inspection or checking operations Test operations