Quality influence factor analysis method, quality prediction method, quality control method, quality influence factor analysis device, quality prediction device, quality control device, quality influence factor analysis system, quality prediction system, quality control system, and computer program

摘要

PPROBLEM TO BE SOLVED: To provide a quality effect factor analyzing method for clearing relation between data of conditions of manufacture obtained in a real situation and quality by using multivariate analysis, a quality forecasting method using an analysis result, a quality control method, a quality effect factor analyzing device, a quality forecasting device, a quality control device, a quality effect factor analyzing system, a quality forecasting system, a quality control system, and a computer program. PSOLUTION: N types of mutually correlating condition data indicating various conditions in manufacturing a product are converted into P types of components wherein N and P do not mutually correlate and NP (S14). P pieces of effect indexes indicating respective effect of the P types of the components on the quality are calculated by the multivariate analysis (S15). The P pieces of the effect indexes are converted into the N types of the condition data indicating the respective effect on the quality of the N types of the condition data (S16). The quality is forecasted and controlled by utilizing the analysis result. PCOPYRIGHT: (C)2005,JPO&NCIPI