quality assurance

Quality Assurance covers all activities from design, development, production, installation, servicing and documentation A valuable process to perform on a whole consumer product is failure testing, the operation of a product until it fails Many organizations use statistical process control to bring the organization to Six Sigma levels of quality, in other words, so that the likelihood of an unexpected failure is confined to six standard deviations on the normal distribution Total Quality Control is the most necessary inspection control of all in cases where, despite statistical quality control techniques or quality improvements implemented, sales decrease.