To evaluate the process capability cpk (process capability index), the requirements of the customer are compared with the results of the process. The tolerance, also called tolerance width, represents the distance between LSL and USL. The limits are also referred to as tolerance limits and thus LTL and UTL. The limits are called LSL (Lower Specification Limit) and USL (Upper Specification Limit). The customer defines the desired result by a value to be achieved and two specification limits. Only a controlled process makes statements about the capability of the process possible. A process is controlled if the result of the process is predictable. A supplier achieves this goal by mastering his processes for the provision of services and by establishing and monitoring the corresponding process capability. The supplier strives to deliver the desired result permanently and at an economically justifiable cost. The customer expects his result to be achieved permanently. The desired result of a process is defined by the customer. Tools for process capability and machine capability analysis (cm)
#Frequency distribution minitab 16 software