CSC/ECE 517 Fall 2022 - E2278. Improve assessment360 controller

This is the design document for Expertiza project E2278 Improve assessment360_controller.rb. This document describes the existing implementation of the assessment360 controller and the updates made to it as part of this project which is primarily UI-focused.

Introduction

Expertiza is an open-source project based on the Ruby on Rails framework. Expertiza provides functionality that allows instructors to get a full or 360-degree overview of a course they teach that includes all students in the course, all assignments, and the scores of every student in each assignment, averages, and final scores as well. This feature is supported by the assessment360 controller.

The assessment360 controller is mainly responsible for the following two views:

1) all_students_all_reviews: This view displays all the meta reviews and the teammate reviews of students for all the programs they have worked on in that semester. Additionally it provides an aggregate of these review scores as well.

2) course_student_grade_summary: This view displays the summary of all the programs that students have worked on, its topic, peer score and instructor grade. This includes the total and average of these scores as well.

Problem statement

• In the assessment controller > all_students_all_reviews view, it shows columns even if all the data in those columns is nil. Additionally, the empty data is just shown as blank and thus leads to confusion.

• Currently the assessment controller > course_student_grade_summary view is missing the columns for average peer review score. Additionally, the same issue of columns being shown even if all data is empty also exists.

• Currently both the pages all_students_all_reviews & course_student_grade_summary show all columns by default and the user has no control to hide/unhide these columns as per their needs.

• Basic refactoring changes need to be implemented, like updating the variable name @teamed_count and using a more appropriate variable name.

Problems & Solutions

assessment controller > all_students_all_reviews view

The current implementation of this view

Following problems were identified in this view:

• Empty rows just show as blank
• Column is visible even if no data is present
• No option to filter columns to allow users to only see particular columns

Below, you can see the updates made to the view to fix the above identified problems:

• When the meta reviews checkbox is unchecked:

assessment controller > course_student_grade_summary

The current implementation of this view:

• Missing average peer review column
• Column is visible even if no data is present
• No option to filter columns to allow users to only see particular columns

Below, you can see the updates made to the view to fix the above identified problems:

• When the peer reviews checkbox is unchecked:

Refactor assessment360_controller - Ensure design principles & patterns

Adding appropriate comments and updating method/variable names wherever applicable. In addition to this, the plan is to ensure the SOLID design principles are followed and code will be refactored accordingly.

Currently following changes are identified:

• Update the variable name @teamed_count to @team_members_count
• Include appropriate comments wherever applicable

The above changes have been implemented as part of the project.

Test Plan

The following test plan has been identified to ensure that the above changes don't break the existing system and the new code being introduced is thoroughly tested.

Manual Testing

The following tests have been identified to ensure that the changes made work as anticipated:

1. Open any course

2. Go to the all_students_all_reviews page

3. Verify that only those columns are visible with at least one data point.

4. Verify empty data is shown as '--'

5. Use checkboxes at the top of the screen and ensure columns are hidden or visible based on the selected checkboxes

6. Go to course_student_grade_summary

7. Verify that unattempted scores show up as '--'

8. Verify that average peer score column is visible and has correct values.

7. Verify that unattempted scores aren't counted toward average.

8. Use checkboxes at the top of the screen and ensure columns are hidden or visible based on the selected checkboxes

References

1. Expertiza on GitHub
2. GitHub Project Repository Fork
3. The live Expertiza website
4. Demo link
5. Expertiza project documentation wiki
6. PR Link
7. Demo Video