Respect the primacy of architectural cues and static signs. Use screens for variable information only: timing, service status, or alerts. Keep motion restrained and legible at distance. Provide redundancy through audio announcements and printouts, ensuring guidance remains available when batteries die, signals fade, or networks throttle under load.
Indoor positioning can mislead when signals bounce or maps lag updates. Set honest expectations, calibrate frequently, and show confidence ranges. Blend turn-by-turn prompts with recognizable landmarks. Always include a quick way to switch to written directions, since some users prefer landmarks over a jittery dot on a screen.
Wayfinding fails quietly when bulbs burn out, stickers peel, or schedules drift. Assign ownership, inspection routines, and response times. Track questions at help desks and spikes in wrong turns. Use data to prune, clarify, and invest, while safeguarding privacy and avoiding metrics that reward clutter over comprehension.