what is quality assurance,quality control and configuration
management systems?

Answer Posted / satish

Quality assurance, or QA for short, is the activity of
providing evidence needed to establish quality in work, and
that activities that require good quality are being
performed effectively. All those planned or systematic
actions necessary to provide enough confidence that a
product or service will satisfy the given requirements for
quality.


Software Quality Control consists of a means of controlling
the quality of software engineering products. It does this
by means of tests of the software system. These tests can be
unit tests, integration tests, or system tests. It also
includes the formal proof of individual pieces of code, and
the review of documents and code.


Configuration Management is the control of changes,
including the recording thereof, that are made to the
hardware, software, firmware, and documentation throughout
the system lifecycle.
Configuration management is useful when developing new
version of softwares

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