CSC/ECE 517 Fall 2017/E1798 Role-based Reviewing

Problem Statement

In various agile methodologies, such as Scrum, different team members take on different duties, such as architect, designer, tester and implementer. Currently, there is no functionality that enables this. The purpose of this project is to assign different duties to team members of an assignment. While reviewing too, there will be different rubrics for evaluating the contribution of members with different roles.

Solution Plan

Task Description

1. A table 'duties' will be created. It will contain all the duties assigned in one assignment.
2. While creating or editing an assignment, there will be a checkbox in the 'Review Strategies' tab, which will specify whether the assignment is a role-based assignment.
3. If the checkbox is checked, different duties can be added to the assignment through the UI.
4. When an assignment is a role-based assignment, the student should be able to assign duties to himself through the 'Your Team' page. In case the assignment does not allow multiple team members to take on the same duty, the student cannot pick a duty that has been picked by another member.
5. While reviewing, there will be different rubrics associated with different duties, which can be created through the 'Questionnaires' tab on the homepage.
6. When a particular teammate is being reviewed, the system should present the correct rubric based on the duty of the teammate.

Proposed Database Changes

A new table called 'duties' will be created with the following structure -
duty_name (varchar) - Name of the duty
multiple_duty (boolean) - If multiple team members can have the same duty in one assignment, this field will be true. Otherwise, it should be false.

The existing table 'assignments' will be modified to include the following fields -
duty_flag (boolean) - If the assignment is role-based, this field will be true. Otherwise, it should be false.

The existing table 'teams_users' will be modified to include the following fields -
duty_id (varchar) - If the duty_flag is checked, this field will give the duty assigned to a team member for the assignment.

Proposed File Changes

Controllers -

duties_controller.rb - This is the controller that handles the actions performed by view in duties_new.html.erb.

New function 'save_duty' to be created - This will save the duties assigned to an assignment.

assignments_controller.rb - This is the controller that handles the actions performed by view in _review_stategy.html.erb.

Existing function 'edit' to be modified - This function will save whether the assignment is role-based.

student_teams_controller.rb - The controller function for 'view' will be modified to show the duty and also select a duty for a team member so that review rubrics can be done based on that role.

New functions 'assign_duty' and 'select_duty' will be defined so that a team member can select a duty and save it.

Views -

assignments/edit/_review_stategy.html.erb - This is view file that has the 'Review Strategy' form for a new or modified assignment. This view will have a checkbox that will specify whether the assignment is role-based.

assignments/edit/_rubrics.html.erb - This view file for the 'Rubrics' tab will specify the reviewing rubric that is applicable to each role.

student_teams/view.html.erb - This view shows the team members and their email id's. we can review them from here. If the assignment is a duty based one, then duties will be visible along side the existing fields. If the duties are not selected yet, then a set duties drop down will be visible.

UI Description

The new changes will be as follows in the UI -

The team would add the duties as -

The Instructor would mark the assignment where team members will have duties or not -

The Rubrics will added based on the role and a new text field will be added to do that -

Use Case Diagram

Actors - Instructor and Student

1. Instructor

Preconditions -

• Assume assignment to be a role-based assignment
  
• Reviewing rubrics for different duties have been created through the 'Questionnaires' tab.

Sequence of steps -

• Log into Expertiza
  
• While creating an assignment, add duties that team members can take on through the 'Review Strategies' tab
  
• On the 'Rubrics' tab, choose the pre-created reviewing rubrics for different duties
  
• Finish creating the assignment

2. Student

Preconditions -

• Student is already a part of a team
• The assignment that the student is working on is a role-based assignment

Sequence of steps -

• Log into Expertiza
  
• On 'Your Team' page, choose a duty to take on from a list of available duties (If multiple_duty is not enabled for a particular duty, the duty will be assigned to first member who chooses it, and will be disabled for the others)
  
• On 'Your Team' page, click 'Review' link for a particular team member
  
• Review the team mate based on the rubric loaded for his duty
  

Class Diagram

• The table 'duties' will contain the name of the duty and whether multiple team members can choose the same duty.
• Assignments will either be role-based or not, depending on the value of the duty flag.
  
• The 'save_duty' and 'edit' functions in the AssignmentsController will allow saving the duties assigned to an assignment and saving whether the assignment is role-based.
  
• The 'assign_duty' and 'select_duty' functions in StudentTeamsController be defined so that a team member can select a duty and save it.
  

Test Plan

• For the instructor

1. While creating a new assignment, new checkbox will be available to make it a role-based assignment

2. If the checkbox is checked then the instructor will be able to add roles which will be applicable for the assignment

3. A role can be repeated among team members based on the role stored in the database.

4. New rubrics for a particular role can be added under Questionnaires tab for specific review questions based on role of a team member

• For the student in team

1. Once a student is in a team for the assignment with roles, they can pick up roles.

2. If a role does not allow multiple members, it will not be visible to other members to choose if chosen already.

2.1. A new view will open for selecting roles which are available.

2.2. The student can select an available role.

2.3. Once a role is selected by a member, it will not be visible for selection.

3. If a role allows multiple selection, multiple team members will be able to select a role.

4. When a peer review begins, the rubrics will be related to that particular role.

5. The members will review each member based on the role the member played for the assignment.

For assignments without roles, the peer reviews will be as per the current functionality with generalized review rubrics for all and not role based.