Abstract
The author presents the quantitative evaluation method for the standardization characteristics of parts structure of products which is an important problem of product design and production. In this paper, he presents the evaluation method for the degree of common use of parts of multi-coloured products as the extention of the previous presentation. The evaluation is made by using three kinds of indexes : 1. fundamental indexes showing the degree and quantity of common use parts, 2. percentage and mean vale derived from the fundamental indexes, 3. indexes showing the special property of parts structure of the multi-coloured products.
