Setup

Data

Chart

Histogram

Capability

Report

Setup Your Analysis

Start by giving your analysis a name and optionally entering your specification limits. These limits come from your part drawing or quality specification.

Include the part number and operation in your title. This makes it much easier to find your analysis later if you save it to your dashboard.

Set Up Your Analysis

Give your analysis a name and optionally set specification limits to calculate Cp and Cpk.

Analysis Title *

A descriptive name helps you identify this analysis later. Include part number, feature, or operation.

Specification Limits Optional

Enter your tolerance limits from the drawing or spec. These are used to calculate process capability (Cp/Cpk). Leave blank if you only want to see the control chart.

Upper Spec Limit (USL)

Lower Spec Limit (LSL)

Notes Optional

Add context like machine, operator, material batch, or measurement conditions.

Run Rules

1 rule(s) selected

Rule 1 is the default starting point. Turn on extra rules only when you want the chart to look for smaller patterns.

Select all run rules

Turn this on to enable all 8 rules. Turn it off to clear every rule.

Rule 1: One point outside the control limitsDefault

Flags a single measurement above the upper limit or below the lower limit. This is the strongest and easiest signal to explain.

Rule 2: Two of three points far from the center on the same side

Looks for two out of three recent points beyond 2 sigma on the same side of the center line. Use this when you want earlier warning of a possible shift.

Rule 3: Four of five points moderately far from the center on the same side

Looks for four of five recent points beyond 1 sigma on the same side. This is more sensitive than Rule 1 and can trigger more often.

Rule 4: Eight points in a row on the same side of the center

Flags a long run of points all above or all below the center line. This suggests the process average may have moved.

Rule 5: Six points in a row trending up or down

Looks for a steady climb or steady drop across six points. Use it to catch drift over time.

Rule 6: Fifteen points clustered close to the center

Flags an unusually tight pattern near the center line. This can happen when variation drops or when the data are being smoothed.

Rule 7: Fourteen points alternating up and down

Looks for a zig-zag pattern. This can point to over-adjustment or another repeating influence.

Rule 8: Eight points beyond 1 sigma on both sides

Flags eight points that stay away from the center line while alternating sides. This can suggest a mixed or unstable pattern.

More rules can help find subtle changes, but they can also create extra alerts from normal up-and-down noise.

Cancel

XmR Chart (Individuals and Moving Range)

The XmR chart is ideal for small batches and continuous processes where you measure one part at a time. It shows individual values and the variation between consecutive measurements.

Step 1: Setup

Setup Your Analysis

Set Up Your Analysis

Run Rules

XmR Chart (Individuals and Moving Range)