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Domain Testing: Divide and Conquer - Testing Education

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Variable(s) Equivalence<br />

Class(es)<br />

‘credit- All credit-limit<br />

limit’ requests<br />

between $400<br />

to $40000<br />

All credit-limit<br />

requests less<br />

than $400<br />

All credit-limit<br />

requests greater<br />

than $40000<br />

All negative<br />

credit-limit<br />

requests<br />

Test cases Risks Notes<br />

$400,<br />

$40000<br />

1) Failure to process credit-<br />

limit requests between<br />

$400 <strong>and</strong> $40000 correctly.<br />

2) Mish<strong>and</strong>ling of lower <strong>and</strong><br />

upper boundary values.<br />

$399 1) Failure to disapprove<br />

credit-limit requests less than<br />

$400<br />

2) Mish<strong>and</strong>ling of value just<br />

beneath the lower boundary.<br />

$40001 1) Failure to disapprove<br />

credit-limit requests greater<br />

than $40000<br />

-$400,<br />

-$40000<br />

2) Mish<strong>and</strong>ling of value just<br />

beyond the upper boundary.<br />

1) Mish<strong>and</strong>ling of negative<br />

credit-limit requests.<br />

Taking the absolute value of<br />

the negative credit-limit<br />

request <strong>and</strong> approving it.<br />

2) Mish<strong>and</strong>ling of upper <strong>and</strong><br />

lower boundary values.<br />

The<br />

program<br />

should<br />

be<br />

capable<br />

of<br />

correctly<br />

h<strong>and</strong>ling<br />

negative<br />

amounts

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