Usability Testing - UX Evaluation

Usability Testing - UX Evaluation of a Diabetes Management App

Conducted a mixed-method UX evaluation of ComDiaBeat, a community-based diabetes management mobile app prototype.

Methods used: NASA Task Load Index (NASA-TLX) to measure cognitive load across core tasks, and card sorting (16 cards) to evaluate information architecture and navigation structure.

Key findings included high mental demand on specific logging tasks, ambiguous labelling between overlapping features (Data Log vs Insight, Daily Goal vs Today's Goal), and strong user consensus on grouping social features (Groups-Feed: 100% agreement). Delivered structured recommendations for IA restructuring and cognitive load reduction.