Abstract
To evaluate eco-efficiency of products, the authors have proposed a new evaluation method named 'total performance analysis (TPA),' which can consider cost, environmental impact and value, simultaneously. The authors have applied it to manufacturing processes. However, in the first example, since the value of the manufacturing process was constant, the method only evaluated process improvement in the aspect of cost and environmental impact. In this paper, the authors apply the method to another manufacturing process in which enhancement of the material characteristics of the product is expected. By considering value enhancement through these aspects, the method becomes able to evaluate 'real' eco-efficiency of manufacturing processes.
