2. 7 machines are used to process eight products. The PFA matrix is given below. To improve continuous flow, the plant would like to build cells for these parts. Using the Rank Order Clustering method to form product families and to construct the cells (Please show all steps). List the machines and parts assigned to each cell. Are the product families you formed mutually exclusive? If not, what choices do you have to ensure that the parts stay within the cells for processing