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Once you’ve thought about how you’ll meet each individual requirement, you need to write the answer in pseudo-code. Remember, you can add comments to pseudo-code by putting a # at the start of the comment. Comments in pseudo-code questions enable you to explain things that aren’t obvious to the examiner.

SET looping TO TRUE     #used to keep the loop running until the user wants to quit

WHILE looping = TRUE DO     #loop to keep asking for identifiers

     #get identifier from user

     RECEIVE identifier FROM (STRING) KEYBOARD

     IF identifier = ‘Q’ THEN     #user wants to quit

          SET looping TO FALSE     #loop won’t run again as condition will be false

          SEND ‘Bye’ TO DISPLAY

������������������ IF LENGTH (identifier) <> 9 THEN

          SEND ‘The customer identifier is not nine characters long’ TO DISPLAY

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          #check last 3 characters

          SET badAlpha TO FALSE #this is a flag that will be changed to TRUE if a non-uppercase letter is found

          FOR count FROM 6 TO 8 DO

               IF (NOT (identifier[count] >= ‘A’ AND identifier[count] <= ‘Z’)) THEN

               SEND ‘Bad character in last 3 characters found’ TO DISPLAY

               SET badAlpha TO TRUE

          END IF

     END FOR

     IF badAlpha = FALSE THEN

          SEND ‘Final three characters are valid’ TO DISPLAY

     END IF

END IF

It is important to use easy-to-understand identifier names and use indentation correctly as this will make the pseudo-code easier to read and help you gain maximum marks.