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A variety of techniques exists for testing
software. |
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| (a) |
Use the basis path testing method to
consider the following flow graph: 
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(i) Identify the predicate nodes in this flow
graph. |
[2] |
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(ii) Use three different methods to
calculate the value of cyclomatic complexity, V(G). Indicate all working used to derive
your answer for V(G). |
[3] |
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(iii) Based on your answer to (i), derive the
basis set of test paths. |
[2] |
| (b) |
(i) A project group has implemented a power
match-making system to pair up potential unmarried males and females. In this program, one
of the criteria used to match-make a male participant to a female participant is the
person’s age. The variable AGE in this system has been declared as an integer
data-type, and only participants from the ages of 22 to 45 are allowed to be match-made.
Use the boundary value analysis testing method to propose six test cases that
should be used in the testing of the AGE variable. |
[3] |
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(ii) Explain in your own words why this
testing method is effective. |
[2] |
| (c) |
In the same match-making program as described
in part (b), the gender of each participant is differentiated through the use of the SEX
data variable. This data variable is of the character type, with a length of one
character. The possible values for the SEX data variable are M and F. |
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(i) Use the equivalence partitioning
testing method to propose one valid and one invalid equivalence class of inputs. |
[2] |
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(ii) Propose
one test-case each for the valid class and the invalid class. |
[2] |
| (d) |
The two testing methods used in validation
testing are Alpha and Beta testing. List two differences between Alpha and Beta
testing. |
[4] |