TYPES OF PRODUCTION WASTE EXAMPLES CAUSES Inventoried Excessive raw materials. Maintaining stocks of materials in excess of current production requirements; inadequate selection of suppliers; lack of JIT materials beyond discipline in supply base; lack of coordination with suppliers JITrequirements inaccurate inventory records Excessive finished Push system; building to forecast; multi-level distribution system production to maintain employment level Push system; batch and queue; buffers between unsynchronized progress production operations; high variability in process times; "lost Obsolete and out-of Waiting too long to dispose, frequent design changes; production parts and undisciplined configuration management; lack of understanding of materials sunk cost Enterprise Level Waste 10/20/2002TYPES OF PRODUCTION WASTE EXAMPLES CAUSES Inventories Accumulations of materials beyond JIT requirements Excessive raw materials and supplies • Maintaining stocks of materials in excess of current production requirements; inadequate selection of suppliers; lack of JIT discipline in supply base; lack of coordination with suppliers; inaccurate inventory records Excessive finished goods • Push system; building to forecast; multi-level distribution system; production to maintain employment level Excessive work in progress • Push system; batch and queue; buffers between unsynchronized production operations; high variability in process times; “lost” production orders Obsolete and out-of￾production parts and materials • Waiting too long to dispose; frequent design changes; undisciplined configuration management; lack of understanding of “sunk cost” • Enterprise Level Waste 10/20/2002 10