Six Sigma SPC - Statistical Process Control

Six Sigma SPC's Quality Control Dictionary and Glossary
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Discrete or Attribute data

Any data measurements that are not quantified on an infinitely divisible numeric scale. Includes items like counts, proportions, ratios, or percentage of a characteristics, (i.e. sex, loan forms, department attendance, etc.) that have measurements like pass or fail, leak or no leak, small, medium, or large, go or no go tests.

Can also be and is referred to as attribute data.

This type of data may be used with control charts such as p charts, (percent defective charts), among others.

The opposite of variable data. Variable data type have real numbers in the measurement like 2.34, 2.55, etc. (i.e. data that can be measured on a continuous scale)

We have a free and commercial six sigma products to help you in these calculations for these data types.

See the free Cpk calculator and the commercial Cpk calculator for more details.

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Last Updated: Wednesday, 15-Mar-06 07:43:18 PST