Requirement

All interactive functions required during normal operation must remain usable while operators wear the protective gloves required at the workplace.

Acceptance Criteria

• In a usability test with >= 8 representative users wearing the required glove type, >= 90% complete the top 5 operational tasks without assistance and within <= 60 s per task.
• Across the same test, the interaction error rate stays <= 3% for taps, selections, and confirmations on those tasks.
• If either threshold is missed, the release is not approved for glove-required workplaces.