🔍
Heuristic Evaluation
Expert review of Mercari's navigation using Nielsen's 10 heuristics
Expert
📊
Competitive Analysis
Benchmarked against leading resale marketplace platforms
Market
🗣️
Qualitative Testing
Think-aloud sessions to uncover navigation pain points
User
🌳
Tree Testing
Validated information architecture findability without UI
IA
🃏
Card Sort
Mapped users' mental models for category groupings
Mental Model
📐
Quantitative Test
Maze prototype test with 21 users, age 18–39
Maze · n=21