Attribute data classifies things into a limited number of possible categories. The most common attribute data encountered in Six Sigma projects is the simple pass/fail outcome after assessing a product or service variable.
Attribute Data Examples
- The outcome of a go/no-go test using a functional gage
- An order that was shipped on-time or late
- A customer that described their experience as (1) highly satisfying, (2) neutral, or (3) dissatisfying
- A given project task categorized as “green,” “yellow,” or “red,” based on the estimated time of completion
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