Timeline
2024.10-2025.3
Role
Product Designer
User Researcher
Visual Designer
Approach
Understand Stakeholder
King County , as government department, aims to create a local travel helper ambassador——also supporting underserved groups like seniors, people with disabilities, and non-native speakers.
-Commuters and first-time visitors have different needs depending on trip purpose and familiarity.
-During transfers, riders face app overload and must quickly decide between various tools and transportation options.
Pain Points
Lack Awareness of Existing Tools (Visitors)
Dynamic Needs (Local's Familiarity and Trip Type)
High Support Demand
(Vulnerable Groups)
Design Solution
2
Trip Specified Recommendation
3
Accessible & Multilingual
Design Considerations
1
How AI Learns About the User?
Staged onboarding balances trust and personalization—starting light, growing smarter with use.
3
Right Prompts, Right Time
I designed contextual, scenario-based prompts using progressive input types—matching users’ mental models and helping the AI deliver focused, visual responses.
“Here are local apps!”
You Prioritize time!!!
So I list out time, cost and walking distance for you!
Are you going to school by bus as usual?
Hold On! A bus stop will change along your route!
VUI
Prompt Structure Design
Technical MVP Development
Iteration based on usability testing
The design went through five iterations, guided by MVP check-ins with the sponsor, usability testing with 8 users, technical feasibility reviews, and feedback from domain experts.
Reflection:
This process taught me the importance of balancing user needs, technical constraints, and stakeholder goals. Iterating with real feedback helped me think critically, prioritize effectively, and stay adaptable in a fast-changing context.
Work under limited resource
With one engineer, I built a lightweight design system and clear docs to speed up handoff and development.
Reflection:
This experience taught me to think critically about scalability and communication—design isn’t just about visuals, but about enabling smooth collaboration under constraints.