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  2. Lot quality assurance sampling - Wikipedia

    en.wikipedia.org/wiki/Lot_Quality_Assurance_Sampling

    Lot quality assurance sampling (LQAS) is a random sampling methodology, originally developed in the 1920s [1] as a method of quality control in industrial production. Compared to similar sampling techniques like stratified and cluster sampling, LQAS provides less information but often requires substantially smaller sample sizes.

  3. Statistical process control - Wikipedia

    en.wikipedia.org/wiki/Statistical_process_control

    Statistical process control (SPC) or statistical quality control (SQC) is the application of statistical methods to monitor and control the quality of a production process. This helps to ensure that the process operates efficiently, producing more specification-conforming products with less waste scrap. SPC can be applied to any process where ...

  4. Quality management system - Wikipedia

    en.wikipedia.org/wiki/Quality_management_system

    A quality management system (QMS) is a collection of business processes focused on consistently meeting customer requirements and enhancing their satisfaction. It is aligned with an organization's purpose and strategic direction (ISO 9001:2015). [1] It is expressed as the organizational goals and aspirations, policies, processes, documented ...

  5. Acceptance sampling - Wikipedia

    en.wikipedia.org/wiki/Acceptance_sampling

    Acceptance sampling uses statistical sampling to determine whether to accept or reject a production lot of material. It has been a common quality control technique used in industry. It is usually done as products leave the factory, or in some cases even within the factory. Most often a producer supplies a consumer with several items and a ...

  6. Production part approval process - Wikipedia

    en.wikipedia.org/wiki/Production_part_approval...

    The production control plan and quality management system will prevent non-conforming product reaching the client or compromising the safety and reliability of finished vehicles. PPAP may be required for all components and materials incorporated in the finished product, and may also be required if components are processed by external sub ...

  7. Quality control - Wikipedia

    en.wikipedia.org/wiki/Quality_control

    Quality control. Quality control (QC) is a process by which entities review the quality of all factors involved in production. ISO 9000 defines quality control as "a part of quality management focused on fulfilling quality requirements". [1] This approach places emphasis on three aspects (enshrined in standards such as ISO 9001): [2][3]

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