It 210 - Algorithm Verification Checkpoint Essay Example
CheckPoint: Algorithm Verification
• Answer the following questions about the information in Appendix J:
o What will be printed if the input is 0?
“You fail” o What will be printed if the input is 100?
“Your grade is 100” and “You did great” o What will be printed if the input is 51?
“Your grade is 51” and “You did well” o What will be printed if the user enters “Wingding”? “How did you do?” – because Wingding is not a value between 0 and 100. o Is this design robust? If so, explain why. If not, explain what you can do to make it robust. This design is pretty good, but could use a little bit more backbone. It doesn’t specify what the output will be if a non-numeric value is inputted – there should be an error output in the design. I also think that it should have an output value that would give the test score in a percentage form. o How many levels of nesting are there in this design? There are three nested loops in this design. o Provide a set of values that will test the normal operation of this program segment.
Defend your choices.
Test Values Input (X) Output 15 You fail 48 You fail 86 Your grade is 86 – You did great 69 Your grade is 69 – You did OK
o Provide a set of test values that will cause each of the branches to be executed. Test Values Input (X) Output 30 You fail 60 Your grade is 60 – You did OK 80 Your grade is 80 – You did well 90 Your grade is 90 – You did great 500 How did you do?
o Provide a set of test values that test the abnormal operation of this program segment. Test Values Input (X) Output Hello How did you do? 120 How did you do? Guess How did you do?
Anything other than a numeric value between 0 and 100 will return the same
• Answer the following questions about the information in Appendix J:
o What will be printed if the input is 0?
“You fail” o What will be printed if the input is 100?
“Your grade is 100” and “You did great” o What will be printed if the input is 51?
“Your grade is 51” and “You did well” o What will be printed if the user enters “Wingding”? “How did you do?” – because Wingding is not a value between 0 and 100. o Is this design robust? If so, explain why. If not, explain what you can do to make it robust. This design is pretty good, but could use a little bit more backbone. It doesn’t specify what the output will be if a non-numeric value is inputted – there should be an error output in the design. I also think that it should have an output value that would give the test score in a percentage form. o How many levels of nesting are there in this design? There are three nested loops in this design. o Provide a set of values that will test the normal operation of this program segment.
Defend your choices.
Test Values Input (X) Output 15 You fail 48 You fail 86 Your grade is 86 – You did great 69 Your grade is 69 – You did OK
o Provide a set of test values that will cause each of the branches to be executed. Test Values Input (X) Output 30 You fail 60 Your grade is 60 – You did OK 80 Your grade is 80 – You did well 90 Your grade is 90 – You did great 500 How did you do?
o Provide a set of test values that test the abnormal operation of this program segment. Test Values Input (X) Output Hello How did you do? 120 How did you do? Guess How did you do?
Anything other than a numeric value between 0 and 100 will return the same