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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]
A control chart is a more specific kind of run chart. The control chart is one of the seven basic tools of quality control, which also include the histogram, pareto chart, check sheet, cause and effect diagram, flowchart and scatter diagram. Control charts prevent unnecessary process adjustments, provide information about process capability ...
The seven basic tools of quality are a fixed set of visual exercises identified as being most helpful in troubleshooting issues related to quality. [1] They are called basic because they are suitable for people with little formal training in statistics and because they can be used to solve the vast majority of quality-related issues.
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.
Quality control begins with sample collection and ends with the reporting of data. [4] AQC is achieved through laboratory control of analytical performance. Initial control of the complete system can be achieved through specification of laboratory services, instrumentation, glassware, reagents, solvents, and gases.
The ISO 9000 family is a set of international standards for quality management systems.It was developed in March 1987 by International Organization for Standardization.The goal of it is to help organizations ensure that they meet customer and other stakeholder needs within the statutory and regulatory requirements related to a product or service. [1]
Kaoru Ishikawa identified five uses for check sheets in quality control: [3]: 30 To check the shape of the probability distribution of a process; To quantify defects by type; To quantify defects by location; To quantify defects by cause (machine, worker) To keep track of the completion of steps in a multistep procedure (in other words, as a ...
Download as PDF; Printable version; In other projects Wikimedia Commons; Wikidata item; ... Software quality control; Stability testing (pharmaceutical) Surface plate;