Search results
Results from the WOW.Com Content Network
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.
Materials testing is used to assess product quality, functionality, safety, reliability and toxicity of both materials and electronic devices.Some applications of materials testing include defect detection, failure analysis, material development, basic materials science research, and the verification of material properties for application trials.
Even if the design is correct, the product may have a manufacturing defect if it was incorrectly manufactured, for example if the wrong materials are used. A product may also be considered legally defective if it lacks appropriate instructions for its use, or appropriate warnings of dangers accompanying normal use or misuse of the product. [1]
In those cases where problems are not immediately resolved and complaints are filed, a company's complaint handling procedures are also likely to affect customer's ultimate evaluation of product and service quality. Some of these variables reflect differing personal standards of acceptable service, while others can be measured quite objectively.
Many disciplines are typically involved in the "8Ds" methodology. The tools used can be found in textbooks and reference materials used by quality assurance professionals. For example, an "Is/Is Not" worksheet is a common tool employed at D2, and Ishikawa, or "fishbone," diagrams and "5-why analysis" are common tools employed at step D4.
Quality control separates the act of testing products to uncover defects from the decision to allow or deny product release, which may be determined by fiscal constraints. [6] For contract work, particularly work awarded by government agencies, quality control issues are among the top reasons for not renewing a contract. [7]
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 ...
Materials management is the process of planning and controlling material flows. It includes planning and procuring materials, supplier evaluation and selection, purchasing, expenditure, shipping, receipt processes for materials (including quality control), warehousing and inventory, and materials distribution. [6]