Method and system for evaluating a defective ratio of products

A computer-readable recording medium comprising instructions that, when executed by a computer system, performs a defective ratio evaluation method of a product, comprising:

• storing defective information of a plurality of types of defective events corresponding to structural features of a product, manufacturing features comprising at least structural features between parts or members included in the product which become product defective occurrence factors and defective ratio coefficients corresponding to said defective events, and making the defective information accessible;
• comparing input design information of a product to be evaluated with the defective information and computing types of defective information and a number of defective information items included in the design information, the design information describing structural features between parts and members included in the product and manufacturing features;
• computing, before beginning manufacture of the product to be evaluated and using the types of defective information and the number of defective information items thus computed, types of defective events estimated for each part of the product, and a degree of occurrence of an event in which the product to be evaluated becomes defective;
• and
• displaying the degree of defective occurrence thus computed and the types of the defective events estimated for each part of the product.

A defective ratio evaluation system of a product, comprising:

• means for storing defective information of a plurality of types of defective events corresponding to structural features of a product, manufacturing features comprising at least structural features between parts or members included in the product which become product defective occurrence factors and defective ratio coefficients corresponding to said defective events, and making the defective information accessible;
• means for inputting design information of a product to be evaluated, the design information describing structural features between parts and members included in the product and manufacturing features;
• means for comparing the design information of the product to be evaluated with the defective information, for computing types of defective information and a number of defective information items included in the design information, and for computing, before beginning manufacture of the product to be evaluated and using the types of defective information and the number of defective information items thus computed, types of defective events estimated for each part of the product, and a degree of occurrence of an event in which the product to be evaluated becomes defective;
• and
• means for displaying the degree of defective occurrence thus computed and the types of the defective events estimated for each part of the product.