Modification of "C" - control card

Abstract

Standard C-cards show the total number of defects in a sample and, as such, they enable the following of the process and drawing of a conclusion if it is under control. However, the main imperative which is imposing is not to keep the process under control but to continually improve the quality system and tend to realize the production and delivery of products without defects. This is why this paper proposes modification of the C-card by which it is possible to have the insight into the number of established list of defects. It is possible to to apply the Pareto analysis to these data for the purpose of establishing critical defects and determination of corrective activities necessary to be done for the purpose of decreasing the total number of defects, and consequently, of improving the quality system.