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Quality inspector in a Volkseigener Betrieb sewing machine parts factory in Dresden, East Germany, 1977. 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]
The history of testing, inspection and certification services spans back several centuries. In the late 19th century, following the advent of the Industrial Revolution and the considerable risks involved with high-pressure steam boilers, specialized institutions emerged across Europe which carried out periodical inspections of such vessels to assess their overall condition as a precautionary ...
The first edition of Juran's Quality Control Handbook was published in 1951. He also developed the "Juran's trilogy", an approach to cross-functional management that is composed of three managerial processes: quality planning, quality control, and quality improvement. These functions all play a vital role when evaluating quality.
The core services offered by SGS include: the inspection and verification of the quantity, weight and quality of traded goods; the testing of product quality and performance against various health, safety and regulatory standards; and the ascertainment of the conformance of products, systems or services with the requirements of standards set by ...
The terms "quality assurance" and "quality control" are often used interchangeably to refer to ways of ensuring the quality of a service or product. [3] For instance, the term "assurance" is often used in a context such as: Implementation of inspection and structured testing as a measure of quality assurance in a television set software project ...
Third-party inspection or "Category A" is the most stringent of the 3 categories of inspection organizations that the standard specifies. Such organizations are third-party inspection agencies that must not be involved in any activities other than inspection and testing. Based on this requirement, the third-party inspection agency must not be ...