Visual meteorological conditions — In aviation, visual meteorological conditions (or VMC) is an aviation flight category in which visual flight rules (VFR) flight is permitted that is, conditions in which pilots have sufficient visibility to fly the aircraft maintaining visual… … Wikipedia
Visual flight rules — (VFR) are a set of regulations which allow a pilot to operate an aircraft in weather conditions generally clear enough to allow the pilot to see where the aircraft is going. Specifically, the weather must be better than basic VFR weather minimums … Wikipedia
Separation of presentation and content — (or separate content from presentation , a special case of the form and content principle) is a common idiom, a design philosophy, and a methodology applied in the context of various publishing technology disciplines, including information… … Wikipedia
Visual networking — refers to an emerging class of user applications that combine digital video and social networking capabilities. It is based upon the premise that visual literacy, the ability to interpret, negotiate and make meaning from information presented in… … Wikipedia
Visual flight — is the control and navigation of an aircraft by using the view from the aircraft as the primary reference point. A pilot observes the outside world and uses the flight controls to take the aircraft safely to the place they want to go. The… … Wikipedia
Separation (air traffic control) — In air traffic control, separation is the name for the concept of keeping an aircraft outside a minimum distance from another aircraft to reduce the risk of those aircraft colliding, as well as prevent accidents due to wake turbulence. Air… … Wikipedia
Visual memory — Close up of the human eye, where vision begins. Visual memory describes the relationship between perceptual processing and the encoding, storage and retrieval of the resulting neural representations. Visual memory occurs over a broad time range… … Wikipedia
Visual acuity — 20/15 and 20/15 vision redirect here. For other uses, see 2020 (disambiguation). Typical Snellen chart used for visual acuity testing. Visual acuity (VA) is acuteness or clearness of vision, which is dependent on the sharpness of the retinal… … Wikipedia
Separation of concerns — In computer science, separation of concerns (SoC) is the process of breaking a computer program into distinct features that overlap in functionality as little as possible. A concern is any piece of interest or focus in a program. Typically,… … Wikipedia
visual approach — An approach by an IFR flight when either part or all of an instrument approach procedure is not completed and the approach is executed in visual reference to terrain (ICAO). A pilot, when authorized to proceed visually, must remain clear of… … Aviation dictionary