Today’s computer interfaces are one-size-fits-all, and hard to change. Computer users with little programming experience have very limited opportunities to customize an interface to their task and work habits. Surmounting these problems requires a fundamentally different approach to UI design. Interfaces must be reflective in the sense that they are represented declaratively, can reason about their interactions with a user, and can change themselves in order to improve these interactions or in response to a user’s explicit request. In this colloquia, UW CSE professor, Dan Weld, reviews a decade of work on intelligent interfaces at the University of Washington, distilling the lessons we have learned. From the Series:CSE Colloquia - 2005