Total Performance Analysis of Manufacturing Processes
Shinsuke Kondoh, Nozomu Mishima, Yuji Hotta, Koji Watari,
Tsuneo Kurita, and Keijiro Masui
National Institute of Advanced Industrial Science and Technology (AIST), AIST Tsukuba East, 1-2-1, Namiki, Tsukuba, Ibaraki 305-8564, Japan
To evaluate the environmental impact of products, we propose a total performance indicator (TPI), an efficiency index that simultaneously takes into account cost, environmental impact, and value. We propose applying the TPI to evaluating manufacturing processes. Calculating the TPI of manufacturing-process segments lets us clarify bottlenecks limiting the enhancing of performance. We focus on a ceramic filter manufacturing process, determining segments that contribute little to creating value and cause considerable environmental impact and cost. Designers evaluating manufacturing processes using the TPI can quickly determine processes that are not “eco-efficient.”
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