As shown in Figure 3, this procedure contains four sub steps, i.e. a relationship analysis between car parts and industrial functions which creates a cross-relational matrix of car parts/components and industries, measurement of the industrial strength of each country and its rating against Japan which creates the data of industrial scale rate of each production function, estimation of each country's manufacturing defect rate, and an evaluation of its manufacturing technology index value from the defect rate which are performed by the formulae described in the figure.