Quiz System of EduPotpie

So i have to make this system as an opensource. To everybody on the Internet , so that every body can also get an idea that how to develop it.
Not a big deal i have to create some tables in that database and then i have to start setting up the managers for that and once i have done with that then i should work on the outputs.

So basically by this system a student can get two outputs

1. Before 
2. After

Before Output :
So in this part a student can come on to the courses page and select there course and then after they read all the course contents (chapter) , they will be presented with the quiz tab.
where they are presented with the quiz category.

So the Quiz categories are :

1. First Unit test
2. Second Unit test 
3. Final Test  

First Unit : In this quiz type a student gets 25 questions on the related topic and each question holds 2 marks , the questions can be multiple choice , or some thing else.

Second  Unit : In this quiz type a student gets 25 questions on the related topic and each question holds 2 marks , the questions can be multiple choice , or some thing else.

Final Test : In this quiz type a student gets 50 questions to solve and each question holds 2 marks , so the total marks for this test will be 100 and the question type will be multiple choice or some thing else.