ISO 9001:2000 was a major overhaul and replaced three standards:
The revision allowed exceptions to design and development procedures if a company does in fact NOT engage in the creation of new products, as well as introducing a few concepts:
For more details, please see: Compare ISO 9001:1994 to ISO 9001:2000
ISO 9000:1994 version
ISO 9000:1994 emphasized quality assurance via preventive actions, instead of final product inspection, requiring evidence of compliance with documented procedures.
ISO 9000:1987 version
ISO 9000:1987 was based on BS 5750, with three quality management systems depending on the activities of the organization:
- ISO 9001:1987 Model for quality assurance in design, development, production, installation, and servicing was for companies and organizations whose activities included the creation of new products.
- ISO 9002:1987 Model for quality assurance in production, installation, and servicing had basically the same material as ISO 9001 but without covering the creation of new products.
- ISO 9003:1987 Model for quality assurance in final inspection and test covered only the final inspection of finished product, with no concern for how the product was produced.
- ISO 9000:1987 was also influenced by existing U.S. and other Defense Standards ("MIL SPECS"), and was better suited to manufacturing.