Quality control is the process by which product quality is compared with applicable standards,
and the action taken when nonconformance is detected. Quality control is a line function, and
the work is done within a process to ensure that the work product conforms to standards and
requirements.
Quality control activities focus on identifying defects in the actual products produced. These
activities begin at the start of the software development process with reviews of requirements,
and continue until all application testing is complete.
It is possible to have quality control without quality assurance. For example, a test team may
be in place to conduct system testing at the end of development, regardless of whether that
system is produced using a software development methodology.
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