Quality assurance ( QA ) is a way of preventing mistakes or defects in manufactured products and avoiding problems when delivering solutions or services to customers; which ISO 9000 defines as "part of quality management focused on providing confidence that quality requirements will be fulfilled". [1] This defect prevention in quality assurance differs subtly from defect detection and rejection in quality control , and has been referred to as a shift left as it focuses on quality earlier in the process. [2]

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 as follows: Implementation of inspection and structured testing as a measure of quality assurance in a television set software project at Philips Semiconductors is described. [4] The term "control", however, is used to describe the fifth phase of the DMAIC model. DMAIC is a data-driven quality strategy used to improve processes. [5]

Quality assurance comprises administrative and procedural activities implemented in a quality system so that requirements and goals for a product, service or activity will be fulfilled. [3] It is the systematic measurement, comparison with a standard, monitoring of processes and an associated feedback loop that confers error prevention. [6] This can be contrasted with quality control , which is focused on process output.

Quality Assurance Manual v9.4 - OnSite Env


Posted by 2018 article