Overview

For this project you will implement the data manager of an online test system. The system allows for the definition of exams with three possible kinds of questions: true and false, multiple choice and fill-in-the-blanks questions. The system will grade submitted exams and generate some statistical information.

Objectives

• Practice the design and implementation of object-oriented software systems.

Grading

• (35%) Design
• (55%) Tests (all public tests)
• (10%) Style

Clarifications

Any clarifications or corrections associated with this project will be available at Clarifications

Code Distribution

The project's code distribution is available by checking out the project named OnlineTest. The code distribution provides you with the following:

• A package named onlineTest - Package where all the classes representing your design will be implemented.
• A package named tests - Includes the public tests (PublicTests.java). Notice that you are not required to write student tests for this project; however, we recommend you do so.

Specifications

Data Manager

For this project you will implement the data manager (model component of the MVC paradigm) for an online test system. The system allows for the definition of exams with three possible kinds of questions: true and false, multiple choice and fill-in-the-blanks questions. The system will grade submitted exams and generate some statistical information.

The functionality of the system you will implement is represented by the interface Manager. The interface represents the methods available to anyone trying to make use of the system. The javadoc documentation for the project can be found at javadoc. Your task for the design part of the project is to come up with a set of classes and interfaces that together provide the functionality defined by the Manager interface.

Access to the data manager functionality will be possible through a class named SystemManager that you must define. This class implements the Manager interface. Feel free to add any instance variables and private methods to this class. Public tests create an instance of the SystemManager class in order to test your system.

Your design should make use of object-oriented design concepts (e.g., generalization, specification, etc.) discussed in class. Keep in mind that having a large number of classes does not guarantee a better design grade. If you only implement the SystemManager class you will lose all the points associated with the design component of this project (even if the class provides all the expected functionality). We encourage you to discuss your design with your instructor or TA to make sure your design is a valid one.

Requirements

• An exam can have different types of questions (true/false, fill in the blanks, etc.)
• We expect to see at least four classes (SystemManager and three additional classes) in your design. The extra classes can be inner classes.
• You should use maps/sets to keep track of your data.
• Verify that your project passes the submit server tests (https://submit.cs.umd.edu/)
• For you to generate the numeric grade results use the following approach to compute average: ((examScore1/totalScoreExam1) + (examScore2/totalScoreExam2) + ...)/totalNumberOfExams
• See StudentTests.html for information regarding the implementation of student tests.
• You must attempt to submit your project immediately after checking out the project (even if you have not implemented any methods). This will allow you to verify that the submission process is working as expected.
• You should submit your project often. This will keep versions of your project in the submit server that are easy to retrieve (you can also get previous versions from your CVS repository). If your computer crashes or you experience any other problem you will have a permanent backup in the submit server.
• See Student Tests for information regarding the implementation of student tests for this project.
• See Style Guidelines for information regarding style.

Additional Requirements for Students in CMSC 132H (Honors)

Students in the honors section may need to complete this part. Talk to your instructor to verify if this is the case.

In addition to the above requirements, you must define a method called loadExamAnswers as part of your SystemManager class (notice you don't modify the Manager interface.) This method will load the students' answers provided for a particular exam. It is up to you to define the data file format (although it must be text file.) The method has one parameter that specifies the file with the students' answers.

Submission

Submit your implementation using the Eclipse "Submit Project" option (available by right clicking on the project folder).

Academic Integrity

Please make sure you read the academic integrity section of the syllabus so you understand what is permissible in our programming projects. We want to remind you that we check your project against other students' projects and any case of academic dishonesty will be referred to the Office of Student Conduct.