Plans and runs research in the user's real environment or real timeline: contextual inquiry (master-apprentice, in-context interview), field studies (observation-first site visits), and diary studies (longitudinal self-logging plus elicitation interview). Use when someone says 'watch users where they actually work', 'contextual inquiry', 'field study', 'site visit', 'shadow users', 'ethnographic', 'diary study', 'log their experience over time', or when a behavior can't be reproduced in a lab or a single session — workarounds, interruptions, expert workflows, multi-day journeys. NOT for lab/task-based testing (plan-usability-test) or single-room interviews (conduct-user-i…
