Online Peer Evaluation System Team Green Apple

Team MembersAda Tse

Amber BahlTom Nichols

Matt Anderson

Faculty Mentor Prof. M Lutz

Project SponsorRichard FasseRIT Online Learning

Agenda

• Project Overview • Current System• Our Product Features• Requirements Process• Product Architecture and Design• Software Process • Risk Analysis and Mitigation• Metrics• Status & Future Goals • Demo

Problem Statement

• The RIT Online Learning department is in need of an online peer evaluation system that can enhance the collaborative learning experience.

Existing Tool: – Paper

Alternative – Clipboard Survey System

Importance

• Group work is an important aspect in today's education system

• The average SE graduate does about 16 group projects

Current System: Clipboard

• Create, Deploy and Analyze – Does provide different views for analysis but more effective for analyzing surveys then Peer

Evaluations. – Very Hard to identify problem groups

• Not integrated with myCourses• Survey System • Can’t deploy evaluations per group• Hard to setup • Reporting does not show group weaknesses• No control over who takes the survey

Current System: Reporting View

View: Percentage/ Graph

Current System: Reporting View

Solution: Custom Application

Peer Evaluation System

• Integrated with existing system– Login pass-through– Course and group data imported directly from myCourses

• Setup Workflow – Tailored for peer evaluations

• Question Templates – Reusable– Shared between instructors

Application Workflow

Instructor Main-Create Eval

Student main -Take Eval

Instructor Main-Reporting

1. Create Evaluation

2. Take Evaluation

3. Analyze Results

WOW!!

Instructor Main

List of global and personal questions templates

Evaluation status

Evaluations listed per course

Solution: Create Evaluation

Select Template

Eval Setup Info

Solution: Create Templates

Global/ Personal

Solution: Students View

Instructions

All students of a group.

Solution: Reporting

• Reporting (Provided with the help of multiple views)

– Multiple levels of detail• By group

• By student

– Sorted by groups or individuals– Quickly identify problem groups

Solution: Reporting View

Solution: Reporting View

Requirements Process

• Mainly elicited by:– In-person Interviews

• Project Sponsors• Subject Matter Experts • Online Learning Technical Staff

– UI Mockups– Evaluating

• RIT Clipboard • Peer Evaluation Templates

Requirements Analysis

• Use Case Analysis

• Workflow Diagrams – Workflow Steps

• Constant user feedback at the end of each Sprint

Product Architecture and Design

Entity Relationships

Evaluation

PK id

start_date end_date group_type

Group

PK,FK1 id

group_name

HasStudents

PK,FK1,FK2 id

Response

PK,FK1,FK2 id

ToStudentID FromStudentID QuestionID Answer GroupID Comment

Template

PK id

nameFK1 owner_id shared global

template_questions

PK id

question_text answer_type orderFK1 parent_id

evaluation_questions

PK id

question_text answer_type orderFK1 parent_id

Person

PK id

username name role

course_section

PK id

name

has_section

FK1 instructor_idFK2 course_section_id

GroupType

PK,FK1,FK2 id

name eval_id

Data Model Architecture

Package Diagram

Deployment Diagram

Software Process

Process: Scrum

24-hour inspection

iteration

SCRUM – 15 minute daily meeting1.) What did you do since last Scrum Meeting?2.) Do you have any obstacles?3.) What will you do before next meeting?

New functionality is demonstrated at

end of sprint}Product BacklogPrioritized product features desired by the customer

Sprint BacklogFeature(s) assigned to sprint

Backlog items expanded by team

• What is Scrum?– Scrum is an iterative, incremental process for developing any product or

managing any work. It produces a potentially shippable set of functionality at the end of every iteration (Sprint).

Scrum: Sprint

• Typical team size 2 to 4 members

• Delivers working software– Typically between 1-4 week iterations

• Cross-functional tasks per team member

• New work may be uncovered by the team during development

Our Methodology

• Flavor of Scrum

• Differences:– Upfront requirements – Postponed the Sprint one delivery date by 2 weeks

• Similarities: – The whole project was implemented in chunks (Sprints) depending on the

requirements prioritization (Sprint Backlogs).– Team meetings

Risk Analysis and Mitigation

Risk

• New Technologies– .NET

• Integration with myCourses– XML Feeds – Testing

• LDAP Authentication

• Complexity of business requirements

Risk Mitigation: Task Planning

• New Technologies– Allocated tasks according to skill set– Team members started off with small/simple

programs– Experienced team members educated the

team

Risk Mitigation: Development

• LDAP & myCourses integration – Great help from the Online Learning

• Complex business requirements– Incremental development & comprehensive

requirements gathering

Risk Mitigation Plan: Software Process

• Use of Scrum• User Feedback (Allows for midcourse corrections)• Increased Product Visibility• Increased Progress Visibility

– Sprint Planning • Through many sprints the requirements were revised many times to ensure that

clarity is achieved.• Throughout every sprint, each decision will be evaluated to make sure that it

aligns with the overall goals of the project.

Risk Mitigation: Tooling

• Subversion for revision control• Google groups• Trac provides web based management

– View files and changesets

• Automated synchronization of project documents to web site

• Trac provided an integrated bug tracking system

Data Collection

Metrics

• Backlogs– Product – Sprint

• Number of tasks completed for a particular sprint (work effort distributed for each sprint)

• Number of bugs– By Feature– By Severity– Per Sprint

• Total effort (man hours) for all phases

Effort Metrics

Bugs Per Feature

Total # of bugs: 53

Major: 22Minor: 11Trivial: 20

Current Status

• Progress

Key Features Progress

Requirements Elicitation DONE

Requirements Analysis (SRS) DONE

High Level Architecture DONE

Initial Setup (DB, Environment) DONE

Requirements Prioritization DONE

Sprint 1 (5th Week) DONE

Sprint 2 (7th Week) DONE

Sprint 3 (9th Week) DONE

Integration Testing DONE

Final Release 05/19/2006

Future Enhancements

• More views for reporting – Currently our application supports 2 views

• High-level groups + students• Team member + responders + questions

• Better support for answer type – Currently our application supports

• Text Type• Radio Button

Reflections

• Great Team!!! – All team members were new to the group

• Appropriate Software Process Model • Delays in Sprint 1

– Unknown Technologies– .NET 2.0

Demo

• Peer Evaluation System

Questions

• Thank you!

Supporting Data

Supporting Data

Requirements Initial Setup Analysis and Design Sprint 1 Sprin 2 Sprint 3 Integration Testing Midquarter/ Final Presentation94 16 32 180 89 132 30 50

Challenges

• Uniformity– Rating System– Question System

• Faculty View

• Different User Types

• Synchronization with myCourses