what is configuration testing

Answer Posted / bajrang badaik

Configuration testing is the process of testing a system
under development on machines which have various
combinations of hardware and software.

In many situations the number of possible configurations is
far too large to test. For example, suppose you are a
member of a test team which working on some desktop user
application. The number of combinations of operating system
versions, memory sizes, hard drive types, CPUs alone could
be enormous. If you target only 10 different operating
system versions, 8 different memory sizes, 6 different hard
drives, and 7 different CPUs, there are already 10 * 8 * 6
* 7 = 3,360 different hardware configurations.

Then if you add various software components such as Web
browser version, anti-virus software, earlier versions of
the system under development, the number of possible
configurations quickly becomes unmanageable. Note that not
all software development efforts necessarily face an
unmanageable number of configurations. For example,
software developed for specific, non-PC hardware devices
may have only a handful of hardware and software
configurations.

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