Tombro Industries is in the process of automating one of its plants and developing a flexible manufacturing system. The company is finding it necessary to make many changes in operating procedures. Progress has been slow, particularly in trying to develop new performance measures for the factory. In an effort to evaluate performance and determine where improvements can be made, management has gathered the following data relating to activities over the last four months: Month 1 2 3 4 Quality control measures: Number of defects 185 163 124 91 Number of warranty claims 46 39 30 27 Number of customer complaints 102 96 79 58 Material control measures: Purchase order lead time 8 days 7 days 5 days 4 days Scrap as a percent of total cost 1 % 1 % 2 % 3 % Machine performance measures: Machine downtime as a percentage of availability 3 % 4 % 4 % 6 % Use as a percentage of availability 95 % 92 % 89 % 85 % Setup time (hours) 8 10 11 12 Delivery performance measures: Throughput time