Interaction design plans for the usable, beautiful behavior of interactive systems. Requiring consideration of both stimulus and response, it is an inherently user-centered discipline.

UX Unicorns and Other Fanciful Creatures UX Unicorns and Other Fanciful Creatures

Partly in response to Darren and partly to set the record straight, Andy Fitzgerald explains why we can't design experiences. Instead, we design for them. The difference is subtle, but important, as it direct affects how others understand the title of User Experience Designer.