View source for CSC/E1869 GRADING AUDIT TRAIL

=='''Introduction'''==

===Problem Statement===
After an instructor gave a grade to an assignment, there is no way to track who gave the grade.
A grading audit trail must be created and the following information needs to be stored: 
:1. When a grade is assigned by an instructor, there needs to be an indication of who did it and when it was done. 
:2. Comments previously provided by other instructors must also be preserved.

This information needs to be stored every time an instructor edits a grade / comment and clicks the save button.

Currently, there are two places need to add grading audit trail: 
:1. '''Review grade''': Log in as instructor -> Manage -> Assignments -> View Review Report
:2. '''Submission grade''': Log in as instructor -> Manage -> Assignments -> View submissions

=='''Proposed Solution'''==

===Design===
We will use MVC design to create a model, a controller, and a view for both of '''Review Grade''' and '''Submission Grade'''.

:Model: has a database contains instructor id, assignment id, grade type, student id, grade, comment, and timestamp.
:Controller: saves a new entry into database every time a review grade or submission grade is saved
:View: displays current submission or review's grading history. An existing example of this is submission record in the system.

=='''Files Changed'''==

===Files Added===
*app/models/grading_history.rb
 '''This is a model for grading audit trail, containing attributes of grading history'''
*app/controllers/grading_history_controller.rb
 '''This is a controller for grading audit trail, it can add grading history into the system'''
*app/views/grading_history/index_html.erb
 '''This is a view for grading audit trail, it will display all grading histories of a submission/review'''

===Files Modified===
* app/controller/grades_controller.rb
'''Add code to call methods in grading_history_controller.rb to create new grading history'''

=='''Testing Plan'''==

Functional testing:

For “Review grade”:
 
1.Log in as instructon

2.Navigate to Manage -> Assignments
 
3.Click on Review Report

A report with following details will show up:
	Timestamp, Instructor Id, Assignment id, Grade type, Student id, Grade, Comment

4.Every time an instructor edits or comments on the grade the report is updated with the new entry and timestamp.


For “Submission grade”:

1.Log in as instructor

2. Navigate to Manage -> Assignments

3.Click on View Submission -> History

A report with following details whill show up:
	Timestamp, Instructor Id, Assignment id, Grade type, Student id, Grade, Comment

4.Every time an instructor edits or comments on the grade the report is updated with the new entry and timestamp.

=='''Reference'''==
[https://expertiza.ncsu.edu/ Expertiza]

[http://wiki.expertiza.ncsu.edu/index.php/Main_Page Expertiza_wiki]

[http://wiki.expertiza.ncsu.edu/index.php/Expertiza_documentation Expertiza Documentation]

[https://github.com/expertiza/expertiza Expertiza Github]