My case studies demonstrate my expertise in mixed-method UX research, applying rigorous methodologies across diverse domains.
Download the portfolio presentation as a PDF Slide Deck or read the case studies below.
Education, Technology
Usability Testing of an AI Learning Partner
Jigsaw Interactive Agent (JIA) provides realtime support for small groups of middle and high school students in collaborative work.
I led the user experience research throughout the entire product design and development process.
Rui’s early market research provided valuable insights that guided product development and improved student success.
Technology
A / B Testing of AI Communication Styles
I studied AI communication styles in Rocket League, an online, team-based, sports game.
I led three research projects on AI communication—this project focuses on AI’s communication modality
Rui produced novel insights on AI communication in human-AI collaboration by examining AI’s modality, proactivity, and explainability.
Automotive software
The Car Online Service Appointment (COSA) booking app helps 700K users schedule appointments to service their cars at their local dealerships.
A major version of COSA was recently released, but needed evaluation. I led the UX evaluation of this web app.
Rui identified the problem in the latest major release that caused a 5% drop in the conversion rate.
Rui is the Wonder Woman of UX Analytics.
