CSSE 220: Object-Oriented Software Development
Design Problems

You will do this exercise by yourself.

Goals

This exercise will let you practice implementing a design that you will create in UML format.

Grading rubric

Total possible: 60 points

COMPLETE BEFORE CODING 10 points for submitting UML diagram FIRST DRAFT.
Save this as first_draft.png (or whichever format you choose)
For your benefit, there is a starting example_uml.png and plantuml.txt source in the svn repository (uml) which correspond to the QuizSimulatorMain class
10 points for submitting a computer generated UML diagram FINAL DRAFT corresponding to your code.
Save this as final_draft.png (or whichever format you choose)
Write code to represent your design.
36 points for implementing and demonstrating functionality of the Extended Online Quiz problem.
(approximately 4 points for each handle* method successfully implemented)
4 points for responding completely to the questions in reflection_questions.txt (provided in the svn repository).
We recommend using either PlantUML or UMLet.
To receive full credit you must pass all unit tests and your simulator should be able to handle all valid inputs.

Extended Online Quiz: Quiz-Testers!

In an online quiz system, teachers write quizzes and students take them. The same quiz question can appear in multiple quizzes. If a teacher updates a quiz question, it's important that all quizzes reflect that change. Questions are true or false questions, which have a prompt and a correct answer (true or false). There are also automated quiz-testers which have a unique id and can attempt to answer questions. To do this they always check the prompt of a question for a particular string and answer true if they find it, or false if they do not. This string is customized for each quiz-tester. It should be possible to get the score a quiz-tester receives on any given quiz. It also should be possible get an overall average quiz score, which should be calculated by treating each quiz score (NOT question!) equally and finding the average of all quizzes in the system.

Example: A quiz-tester with a search string of "cow" gets the question prompt "Are all cows blue?" The quiz-tester returns true because it finds "cow" in the string "Are all cows blue?". The answer for this question is false, so the quiz-tester would get this question wrong.

Example: A quiz-tester gets 1/4 (25%), 2/10(20%) and 3/10(30%) on the three quizzes in the system. Its overall average quiz score would be: (0.25+0.2+0.3)/3 = 25%

Turn-In Instructions

You will turn in your assignment by submitting your code via the ImplementingDesign2 repository

Sample Output

There is sample output of a working solution in example_output.txt that you can use as a model for display. You do not have to match this exactly, but it should work in a similar fashion and you must pass all unit tests.