Domain Testing: Divide and Conquer - Testing Education

Variable(s) Equivalence
Class(es)
‘student All scores 60
score’ and greater
All scores less
than 60
All scores
greater than
100
All negative
scores
Test cases Risks Notes
60, 100 1) Failure to correctly
process scores 60 and
above, that is, failure
to NOT assign a grade
of ‘F’ to scores 60 and
above.
2) Mishandling of
lower and upper
boundary values.
59 1) Failure to give a
student ‘F’ grade in a
course with score less
than 60
2) Mishandling of
value just beneath the
lower boundary.
101 1) Mishandling of
scores greater than 100
2) Mishandling of
value just beyond the
upper boundary value.
-60 1) Mishandling of
negative amounts.
Taking the absolute
value of the negative
score and declaring the
grade as not ‘F’ when
it should be ‘F’.
2) Mishandling of
boundary value.
What about
bonus points
that add up to
make the score
greater than
100?
What about
negative
scoring?