Case Study

Prep AI

Prepare smarter. Interview with confindence.

Platform

Web Application

Role

UI / UX Designer

Duration

6 Weeks

Tools

Figma, Figjam

Project Type

Group (4 Members)

01

Problem Overview

Prep AI is an AI-powered interview preparation platform designed to help students and professionals practice role-specific questions, receive personalized feedback, and build confidence through a structured learning experience.

Prep AI product overview visual
02

Key Pain Points

02 · 01

Unclear Expectations

Users are unsure which questions to expect for their target role.

02 · 02

Lack of Feedback

Users struggle to identify their weaknesses and areas for improvement.

02 · 03

Low Confidence

Limited practice makes interview situations feel stressful and unpredictable.

02 · 04

Scattered Resources

Interview preparation often involves multiple tools and disconnected resources.

03

Research and insights

50+

20 In person Interviews 30+ Google form responses

90%

User are willing to try an AI-based interview prepration tool.

I combined quantitative and qualitative research to understand users' interview preparation challenges, needs, and expectations.

Key Insights

🗺

Users Need a Structured Roadmap

Users need a clear preparation path to stay organised and consistent.

💡

Feedback Should Guide Improvement

Users need actionable feedback to identify weaknesses and improve their answers.

🎤

Mock Interviews Are the Most In-Demand Feature

Users want realistic practice to build confidence before actual interviews.

Highlight

Users need a structured, personalized interview preparation experience with realistic mock interviews and actionable feedback to build confidence.

04

Affinity Mapping

Content and Resources

“There's too much content online, I don't know what to follow.”
I keep switching between YouTube and Google.
I don't know which topics are actually important.
Beginner content and advanced content are all mixed.

Preparation Challenges

I don't know where to start my preparation.
I'm not sure if I'm preparing the right way.
I just study randomly whatever I find.
I don't have a clear roadmap.

Practice Issues

“There's too much content online, I don't know what to follow.”
I keep switching between YouTube and Google.
I don't know which topics are actually important.
Beginner content and advanced content are all mixed.

Feedback Problems

“I don't know if my answers are correct.”
No one gives feedback on my performance.
I don't know which topics are actually important.
Beginner content and advanced content are all mixed.

Confidence & Emotions

I feel very nervous before interviews.
“My confidence is low during interviews.”
I'm afraid I'll mess up the interview.
I forget things when I get stressed.

Time Constraints

I only get time on weekends.
Work takes most of my time.
I don't know which topics are actually important.
Beginner content and advanced content are all mixed.

Platform Needs

I wish everything was in one place.
“It should tell me what to do next.”
I need a step-by-step guided system.
I want something that tracks my progress.
05

User persona

Based on insights from our research, we identified a target user profile representing students and early-career professionals preparing for interviews.

Shreya madaan

Student / Early-Career Job Seeker

“I want to feel confident and well-prepared before my interviews, but I often don't know where to start.”

Goals

  • Prepare for upcoming interviews in a structured way.
  • Practise role-specific questions.
  • Build confidence and improve answers.
  • Track progress and identify weaknesses.

Frustrations

  • Interview resources are scattered across multiple platforms.
  • Not sure what to study or where to start.
  • Limited feedback on answers.
  • Lack of realistic practice opportunities.
06

User Journey Map

Mapping the user's journey through Prep AI to identify actions, thoughts, challenges, and opportunities for improvement.

Discovering the need illustration

Stage 1

Discovers the Need

User Actions

  • Searches for interview preparation resources.
  • Watches tutorials and reads online content.

User Thoughts

There are so many resources. I don't know where to start.

User Emotions

Overwhelmed

Pain Points

  • Scattered information.
  • Unclear preparation direction.

Opportunities

  • Highlight key benefits.
  • Show how Prep AI simplifies preparation.
Exploring the platform illustration

Stage 2

Explores the Platform

User Actions

  • Explores the dashboard and available features.
  • Reviews learning and practice options.

User Thoughts

This looks helpful. Let me explore what it offers.

User Emotions

Curious

Pain Points

  • Uncertainty about which features to use first.

Opportunities

  • Make features easy to understand.
  • Clearly present available preparation options.
Getting started illustration

Stage 3

Gets Started

User Actions

  • Sets up their profile.
  • Selects a target role and preparation goals.

User Thoughts

I hope this helps me prepare for my target role.

User Emotions

Hopeful

Pain Points

  • Uncertainty about where to begin.

Opportunities

  • Simplify onboarding.
  • Guide users towards relevant preparation activities.
Practising and learning illustration

Stage 4

Practises & Learns

User Actions

  • Uses learning resources.
  • Practises interview questions.

User Thoughts

I want to practise and improve my answers.

User Emotions

Engaged

Pain Points

  • Difficulty practising consistently.
  • Need for relevant practice questions.

Opportunities

  • Make practice easy to access.
  • Provide role-relevant questions and realistic mock interviews.
Receiving feedback and improving illustration

Stage 5

Receives Feedback & Improves

User Actions

  • Attempts mock interviews.
  • Reviews AI feedback and recommendations.
  • Identifies improvement areas.

User Thoughts

This feedback helps me understand where I can improve.

User Emotions

Motivated

Pain Points

  • Needs clear, actionable feedback.
  • Wants to understand progress over time.

Opportunities

  • Present feedback clearly.
  • Highlight improvement areas and progress.

Key Takeaway

A guided preparation journey, realistic practice, actionable feedback, and progress tracking can help users prepare with greater confidence.

07

Card Sorting

To understand how users could navigate Prep AI more intuitively, our team grouped related features into meaningful categories during a card sorting activity.

Learn

  • Interview Basics
  • Beginner Guide
  • Skill Questions
  • Technical Questions
  • Behavioural Questions
  • Video Tutorials
  • Articles & Notes
  • Case Studies
  • Practice Cases

Improve

  • AI Feedback
  • Answer Evaluation
  • Detailed Analysis
  • Confidence Analysis
  • Weak Area Detection
  • Communication Score
  • Improvement Tips

Track progress

  • Progress Dashboard
  • Practice History
  • Performance Analysis
  • Daily Streaks
  • Weekly Reports
  • Goal Completion
  • Interview Readiness Score

Community

  • Talk to an Industry Mentor
  • Find a Mentor
  • Mentor Availability
  • Mentor Profiles
  • Schedule a Session
  • Mentor Feedback

Practice

  • Mock Interviews
  • Quiz Practice
  • Voice Practice
  • Video Practice
  • Real Interview
  • Timed Practice
  • Conversation Practice
  • Group Discussion Practice
  • AI-generated Questions

Home

  • Dashboard
  • Existing User Dashboard
  • Continue Practice
  • Recommended for You
  • Latest AI Feedback Summary
  • Resume Practice
  • Quick Actions
  • Upgrade to Pro
  • Help & Support
08

User Flow

New User Flow

Onboarding / Profile setup (1–5) → Dashboard (New user) → Choose Career Path → Choose Topic / Ai Recommendation → Practice Arena → Session Completion → AI Feedback → Improve → Track progress

Existing User Flow

Dashboard (Existing user) → Choose Career Path → Choose Topic / Ai Recommendation → Practice Arena → Voice / Video / Chat → Session Completion → AI Feedback → Improve → Track progress
09

Wireframes

Wireframe — onboarding for new users
New User
Wireframe — practice screen
Practice
Wireframe — practice type selection
Practice Type
Wireframe — AI feedback screen
AI Feedback
10

Final High-Fidelity Screens

View Prototype
11

Leanings and Takeways

Working on Prep AI helped me understand how research and structured design can address users' interview preparation challenges.

1

User Research

Research helped me identify users' challenges and understand their preparation needs.

2

Organise Information

Card sorting helped me group features into meaningful categories and structure the content.

3

Design with Purpose

I learned to make design decisions based on research insights and user needs rather than assumptions.

4

Map User Journeys

Creating user flows helped me understand how users move through the platform.

Key Takeaway

This project strengthened my understanding of the end-to-end UX design process, from user research and problem identification to creating a structured user experience.

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