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
All the way through "There's a consistency to physical objects that somehow reads all the way through, so that when you make a physical object, if it lacks the proper amount of weight or if it lacks a certain density...I mean, if its outside says, 'I weigh so much and I have such-and-such a density,' and when you pick it up, you discover an inconsistency there, then you can sense that, you can see it, even without picking it up. It's absolutely essential that everything be done all the way through." Lawrence Wechler & Robert Irwin, Seeing Is Forgetting the Name of the Thing One Sees Invisible substanceA great painting has to be better than it has to beFinished on the insideSigning partyWhy YKK zippers are the brown M&Ms of product designYou'll know it's there objectscraft