Descriptions and Definitions of Quality Terms, Tools and Techniques

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Acceptance

Acceptance is the general process of receiving inputs. A key part of this is in ensuring these are of acceptable quality, conforming to requirements.

Acceptance has two key aspects, for you and for your supplier. First, it allows items to be passed into production or use. Secondly, it may trigger payment of the supplier. If the supplier is internal, it provides a metric to them of the acceptability of their outputs.

Acceptance testing is the performing of various tests in order to check that the item is acceptable. For example, software systems may go through various designed tests (often called User Acceptance Testing, UAT), typically based on the original specification) to ensure it meets needs.

Acceptance sampling is testing of a certain number of items to give an indication of the acceptability of the whole lot. 100% sampling means that you test everything. 0% sampling means that you test nothing. The level of acceptance sampling that you do will be based on a combination of the criticality of subsequent failure and the trust that you have in the supplier's quality systems. The acceptance number is the number of items in the sample that are allowed to fail whilst still accepting the lot.

See also:

Acceptable Quality Level (AQL), Sampling

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