A visual defect category may appear clear until two reviewers classify the same example differently. Examine that disagreement before relying on counts from different people.
ASQ's check-sheet guidance supports structured, consistently defined data collection. ASQ — check sheet.
Use relevant examples
For a character-appearance review, include clear cases and boundary cases under the actual viewing conditions. Keep independent judgments before discussing the examples together.

Improve the definition
Identify whether disagreement concerns terminology, visibility or the decision boundary. Clarify the relevant reference and reassess the method as appropriate. A meeting in which everyone agrees verbally is not the same evidence as consistent independent use of the category.

Source reviewed 25 October 2026. Interpretation and original diagrams: PLUSHIP / Qunhe. Examples are illustrative.
Related reading
A Phthalate Review Needs the Actual Components and Applicable Scope
Metrological Traceability Belongs to a Measurement Result
Calibration, Adjustment and Verification Describe Different Work
