Website Response Times An Article by Jakob Nielsen www.nngroup.com Users really care about speed in interaction design...A snappy user experience beats a glamorous one, for the simple reason that people engage more with a site when they can move freely and focus on the content instead of on their endless wait. 0.1 seconds gives the feeling of instantaneous response. This level of responsiveness is essential to support the feeling of direct manipulation. 1 second keeps the user's flow of thought seamless. 10 seconds keeps the user's attention. A 10-second delay will often make users leave a site immediately. uxperformanceinteraction
What is this static modernism? Why can't office buildings use doorknobs that are truly knob-like in shape? What is this static modernism that architects of the second tier have imposed on us: steel half-U handles or lathed objects shaped like superdomes, instead of brass, porcelain, or glass knobs? The upstairs doorknobs in the house I grew up in were made of faceted glass. As you extended your fingers to open a door, a cloud of flesh-color would diffuse into the glass from the opposite direction. The knobs were loosely seated in their latch mechanism, and heavy, and the combination of solidity and laxness made for a multiply staged experience as you turned the knob: a smoothness that held intermediary tumbleral fallings-into-position. Few American products recently have been able to capture that same knuckly, orthopedic quality. Nicholson Baker, The Mezzanine The door handle is the handshake of a building modernismdoorstouchobjects