Track: Quality Control and Management

Abstract

Control chart is one of the statistical process control tool that its use is for monitoring and controlling variations in the production process. It enables one of variation sources - the special cause - to be identified, signaling at the quality manager that the process involved might be in a state of “statistically out of control”.  This particular state of production process jeopardises quality of the products produced. Clearly, the control chart is a prominent tool in the statistical process control. Despite this fact, the control chart suffers from inability to identify the true root causes of a problem behind the presence of the special cause. This paper reports on the result of research on developing a novel tool of root cause analysis designated for the control chart. It also reports of the successful result of validating the tool on a case study company in Indonesia.