which knowledge is must for tester

Answer Posted / vignesh

The first and foremost knowledge a tester should possess is
the ability to look at things from different angles, which
is anlytical skill. Knowledge about the domain is important
but what is more important than that is how to use testing
principles to effectively test what you understand from the
domain.
Say your domain says, the minimum deposit for a customer of
a bank is Rs.1000. Any one can derive a positive test case
like testing for 1000. But the need to check less than 1000
is crucial because that proves that the system may pass
below this range, which should not be as per the domain.
Above example clearly points out...possessing domain
knowledge and testing what you possess are two different
skills although both are closely related to each other.

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