Xinxin Li
UX / Interaction Designer
I design feedback-driven digital products where interaction, structure, and user behavior are closely connected.
I focus on systems where feedback actively shapes user experience, not just informs it.
Currently focused on interaction design, feedback systems, and product-level thinking.
Feature Project
SUMSO
Designing Feedback for Speaking Confidence
A mobile product designed to reduce speaking hesitation through structured, supportive feedback and continuous interaction loops.
Sumso is an independent product I developed to explore how feedback design can influence user confidence and engagement in language learning.
Problem
Speaking is often the hardest part of language learning. Many learners hesitate not because they lack knowledge, but because feedback feels evaluative and increases pressure.
Goal
Design a feedback-driven interaction system that supports confident speaking and encourages continued practice over time.
My role
I designed the product concept, interaction flow, feedback structure, and interface system, and developed the project from initial concept to a coherent product experience.
Key design decision
Structured feedback over evaluation
Feedback is designed to guide improvement without increasing pressure, shifting from judgment to support.
Key design decision
Interaction as a continuous loop
The experience connects prompt, speech, feedback, and repetition into a loop that encourages ongoing practice.
Key design decision
Progress as motivation
Progress tracking visualizes change over time, helping users understand development rather than focusing on isolated performance.
The system is designed to reduce hesitation and support more consistent speaking behavior through structured feedback.
System thinking
This project focuses on designing a feedback-driven interaction system rather than isolated features.User input, structured feedback, and progress tracking are connected into a continuous loop that supports learning and confidence over time.
Current development
The product is currently being developed toward a more realistic implementation, including data-driven interaction, improved progress logic, and integration with SwiftUI and Firebase.
Key insight
Small changes in feedback tone, timing, and structure had a strong effect on user confidence and willingness to continue. This reinforced my interest in designing systems where feedback shapes both behavior and experience.
About
My background combines design, digital learning, and technology. I am particularly interested in how interaction design influences user behavior, confidence, and long-term engagement.I am particularly interested in how interaction design influences user behavior, confidence, and long-term engagement.
©2026 Xinxin Li. All rights reserved.
Thank you!
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