RANDOM TRACEABILITY STRATIFICATION AVERAGE COLLATION ANALYSIS METHOD, X-R CONTROL CHART FUNCTION PART PROGRAM, RANDOM TRACEABILITY STRATIFICATION AVERAGE COLLATION CAUSE ANALYSIS PROGRAM

摘要

PPROBLEM TO BE SOLVED: To provide a program allowing distinctive monitoring of influence collation for each factor in a precision area for analyzing a cause of a chronic characteristic failure problem while continuing production in a field, wherein influence collation cannot be determined conventionally due to deviation or interaction even when a component within a standard is used. PSOLUTION: The production with traceability is characterized in that possible traceability of production processes serving as all of product quality factors from a material to completion of a product, components, and materials are uniformly mixed at random. Also, the record of the production are collected intentionally, and as the flow of a chart, the record is stratified while using traceability identification for one factor as an item. Differently from a conventional method, one axis is added to the X-R control chart, and a product problem characteristic mean transition and a mean transition of a factor characteristic such as a component dimension are monitored on the same graph, and collation between the character means is checked. By automatic patrol between the factor and its factor characteristic, a cause of the factor characteristic, which is most correlative with influence, is automatically determined, and notification via sound is also carried out. PCOPYRIGHT: (C)2007,JPO&INPIT