Time: 4pm Tuesday, March 20 Place: 202 South Hall Joint CS/SIMS Colloquium Experiments in Interactive Workspaces Terry Winograd, Stanford University The concept of ubiquitous computing has been popular for many years, but there are still few compelling examples of how to put the ideas into practice. There are still many hard questions, both at the systems level and at the user interaction level, about how to create a coherent information and interaction space that is distributed among many places, machines, and users. We have been developing a testbed called the iRoom, in which we are creating the components of an integrated interactive environment for people engaged in multi-person work that involves complex visual and information structures. We have developed a robust, flexible communications infrastructure for integrating devices ranging from workstations and touch screens to specialized I/O devices. On top of this infrastructure we have explored mechanisms for moving both information and controls across devices of different types and scales, and have created some preliminary elements of an "overface" that provides cross-platform, cross-device uniformity for managing and working in the space. The talk will describe the overall philosophy and architecture of the iRoom, and illustrate with a number of specific application experiments that we have begun. Biography Terry Winograd is Professor of Computer Science at Stanford University. He has done extensive research and writing on the design of human-computer interaction. His early research on natural language understanding by computers was a milestone in artificial intelligence, and he has written two books and numerous articles on that topic. His book, *Understanding Computers and Cognition: A New Foundation for Design* (Addison-Wesley, 1987, co-authored with Fernando Flores), took a critical look at work in artificial intelligence and suggested new directions for the design of computer systems and their integration into human activity. He co-edited a volume on usability with Paul Adler, (*Usability: Turning Technologies into Tools* Oxford, 1992). His most recent book, *Bringing Design to Software* (Addison-Wesley, 1996) brings together the perspectives of a number of leading proponents of software design. At Stanford, Winograd directs the Project on People, Computers, and Design, and the teaching and research program on Human-Computer Interaction Design. He is one of the principal investigators in the Stanford Digital Libraries project, and the Interactive Workspaces Project. He was a founder of Action Technologies, a developer of workflow software, and was a founding member of Computer Professionals for Social Responsibility, of which he is a past national president. He is also on the editorial board of several journals, including Human-Computer Interaction, Personal Technologies, and Information Technology, and People.