The terms “quality assurance” and “quality control” are often
used interchangeably to refer to ways of ensuring the quality of
a service or product. The terms, however, have different
meanings. Control: An evaluation to indicate needed corrective
responses; the act of guiding a process in which variability is
attributable to a constant system of chance causes. Quality
Control: The observation techniques and activities used to
fulfill requirements for quality. Assurance: The act of giving
confidence, the state of being certain or the act of making
certain. Quality Assurance: The planned and systematic
activities implemented in a quality system so that quality
requirements for a product or service will be fulfilled. At its
simplest, quality control is inspecting, testing or checking
something (service or product) to make sure it's OK. The intent
is to identify anything that isn't OK, and either fix it or
eliminate it, to make sure it conforms to the specifications,
and has/does/functions as required. Quality co