Six Sigma SPC - Statistical Process Control

Six Sigma SPC's Quality Control Dictionary and Glossary
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ALT - Accelerated life test

Test that are conducted on products, processes, etc., for the purpose of which is to find and identify mechanisms that cause wear out and not to find individual defects.

The test for electrical components, for example, may be to put a sample of the product in a temperature chamber and cycle the temperature from hot to cold while changing the humidity from high to low, and electrically biasing the part, for a time period of 30 days, which could represent a duration of 10 years.

Can be used to test the design life for durability.

Also see Bathtub curve, Burn In, Expected life, Failure rate, and Reliability.

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Last Updated: Monday, 06-Mar-06 04:04:10 PST