Lean Manufacturing and Six Sigma Definitions

Glossary terms, history, people and definitions about Lean and Six Sigma


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Acronym for Automotive Industry Action Group.

It is a not-for profit association founded in 1982, and based in Southfield, Michigan. It was developed to provide recommendations and a framework for the improvement of quality in the North American automotive industry. The association’s areas of interest includes product quality standards, bar code and RFID standards, materials management, EDI, returnable containers and packaging systems, and regulatory and customs issues.

The AIAG publishes automotive industry standards and offers educational conferences and training to its members, including the advanced product quality planning (APQP) and production part approval process (PPAP) quality standards. These documents have become a de facto quality standard in North America that must be complied with by all Tier I suppliers.

The “blue books” provide guidance on popular tools of Six Sigma:

  • Advanced Product Quality Planning (APQP)
  • Production Part Approval Process (PPAP)
  • Failure Mode and Effects Analysis (FMEA)
  • Process Flow Diagram
  • Measurement Systems Analysis (MSA)
  • Statistical Process Control (SPC)
  • Layered Process Audit (LPA)

The organization was founded by representatives of the three largest North American automotive manufacturers:

Founding Members: Ford, General Motors and Chrysler.

Other Members: Toyota, Honda, Nissan, Caterpillar, Navistar International



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