Occupant Symptom
A repeatable change in pressure, posture, temperature, visibility, sound, touch, reach, motion tolerance, or fatigue reported by a particular person.
- Locate the occupant symptom boundary
- Observe the occupant symptom in use
- Verify the occupant symptom result
Storage Symptom
A recurring failure to contain, locate, restrain, separate, or retrieve discrete cabin items during normal use.
- Locate the storage symptom boundary
- Observe the storage symptom in use
- Verify the storage symptom result
Pressure Pattern
The location, intensity, spread, and onset time of force felt where the body contacts a seat, support, or surface.
- Locate the pressure pattern boundary
- Observe the pressure pattern in use
- Verify the pressure pattern result
Retrieval Delay
The time and attention needed to find and obtain an item from its assigned or improvised cabin location.
- Locate the retrieval delay boundary
- Observe the retrieval delay in use
- Verify the retrieval delay result
Thermal Imbalance
An unwanted difference in heat gain or loss caused by surfaces, sunlight, airflow, humidity, clothing, or accessory operation.
- Locate the thermal imbalance boundary
- Observe the thermal imbalance in use
- Verify the thermal imbalance result
Shared Cabin Volume
Space near seats, controls, vents, restraints, storage openings, footwells, and occupants that multiple accessories may occupy or cross.
- Locate the shared cabin volume boundary
- Observe the shared cabin volume in use
- Verify the shared cabin volume result