SAC EXAMPLE 2
Sequential Selection Constructs
(NOTE: This does not implement the OOSD paradigm; see the last extension.)

The following SAC illustrates a simple of if-then-else and if-then selection constructs in sequence.  (a) If "Jan", "O", and 70 are input, what will the output of this algorithm be?  (b) What does this algorithm do?

EXTENSIONS:

1. What set of test data would be necessary to completely check the logic of this algorithm?
2. How could the first selection be accomplished using a simple if-then construct?
3. In order to print out whether or not N$ is married, what additions are needed in the SAC?
4. In order to classify a person as a child (age < 13), a teenager (13 = age < 20) or an adult (age >= 20), what modifications to the SAC are necessary?  (Hint: this is easier, if nested selection constructs are used, so it can best be answered after studying SAC EXAMPLE 3; however, try to answer this with sequential selections only.  Check your logic.  Note the cumbersome logic that results.)
5. How would the algorithms in this example be modified to represent OOSD?  (b) Would the different versions of this algorithm have different OOSD versions?