Attribute Control Chart

Create p, np, c, or u control charts to monitor defect rates and process stability.

Study Title *

Give your study a descriptive name for the PDF report.

Chart Type *

p Chart

Proportion defective (variable sample size)

np Chart

Number defective (constant sample size)

c Chart

Defect count per unit/lot (constant opportunity)

u Chart

Defects per unit (variable opportunity count)

Notes Optional

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What are Attribute Charts?

Attribute control charts monitor count-based quality data: defective items (p/np charts) or defect counts (c/u charts). Unlike variable charts that track continuous measurements, attribute charts work with pass/fail, good/bad, or defect count data.