Habitability is the consideration of the characteristics of systems focused on satisfying personnel needs that are dependent upon physical environment. Habitability analyzes factors of working conditions and accommodations that are necessary to sustain the morale, safety, health, and comfort of the user population that contribute directly to personnel effectiveness and mission accomplishment. (USAF 2012)
USAF. 2012. "US Air Force HSI (Human-System Integration) 2012." Accessed on 11 September 2012. Available at http://ww3.safaq.hq.af.mil/organizations/afhsio/hsidomains.asp.