INDIVIDUAL CHARTS
Use this tool to supervise the production quality, in the case where you have a single measurement for each point in time. The measurements need to be quantitative variables.
This tool is useful to recap the moving mean and median and the variability of the production quality that is being measured.
Integrated in this tool, you will find Box-Cox transformations, calculation of process capability and the application of rules for special causes and Westgard rules (an alternative rule set to identify special causes) available to complete your analysis.
The individual charts tool offers you the following chart types alone or in combination:
- X Individual
- MR moving range
An X individual chart is useful to follow the moving mean of a production process. Mean shifts are easily visible in the diagrams.
An MR chart (moving range diagram) is useful to analyze the variability of the production. Large difference in production, caused by the use of different production lines, will be easily visible.