Analysis of Garment Production Methods. Part 1: Comparison of Cost and Production Between a Traditional Bundle System and a Unit Production System Installation.

摘要

This report compares the costs and productivity relationships between the traditional bundle system method of apparel production with the new production method referred to as the Unit Production System (UPS). In the former system large bundles (quantities) are completed at each operational stage before the entire bundle is transferred to the next operation. In the latter system, individual units progress from operation-to-operation in single file order as in a mass-production line. A manufacturer that was using a bundle system switched over to a UPS. Data critical to an analysis of the two systems was collected prior to and after the changeover and then was critically analyzed. Analysis revealed that with the UPS installation weekly output increased by 9.6%; the number of workers decreased by 10.3%; production time per unit decreased by 17.3%; and, unit production costs decreased by 12.3%. All parameters of the UPS installation are discussed.