6.2. A ME machine shop produces machines parts in a job shop. It has recently implemented a group technology program in its shop, and it is now ready to develop manufacturing cells on the shop floor. Production analysts have identified five parts that seem to meet the requirements of parts appropriate for cellular manufacturing: moderate batch sizes, stable demand, and common physical characteristics. Operation sequence of each part on a set of machines (A through E) is given below: Part Operation sequence 1 A-D 2 B-C-E 3 A-D 4 B-C-E 5 A-B-C-E Form the cell. Which machines are assigned to cells and which parts will be produced in each cell? Is there any exceptional part? If so, suggest alternative ways for producing the exceptional part