J. O. Wobbrock ~ September 21, 2001Human Computer Interaction Institute ~ Carnegie Mellon University The “Welcome, Matt” Communicating Interruptability via an Observable Message Board

J. O. Wobbrock ~ September 21, 2001Human Computer Interaction Institute ~ Carnegie Mellon University The Problem  Lack of information passing between office inhabitants and potential visitors, esp. when door closed Inability to understand state of office from hallway Inability to understand state of hallway from office  Door not best indicator of interruptability Office inhabitants may want to close door, yet remain interruptable (e.g., for silence)

J. O. Wobbrock ~ September 21, 2001Human Computer Interaction Institute ~ Carnegie Mellon University Scenario I  Scott Hudson is grading homework and wants it quiet, so he closes the door  Judy Teeay comes by with more ungraded assignments, sees door is closed, and leaves  Scott opens door, realizing he may miss Judy. Hallway noise a nuisance. Judy never shows

J. O. Wobbrock ~ September 21, 2001Human Computer Interaction Institute ~ Carnegie Mellon University Scenario II  Sara Kiesler is on her way to an important faculty meeting  She knows Scott Hudson is cranking code and may not be able to come  Sara swings by Scott’s office; Door is closed  Meeting is crucial, so Sara knocks loudly  Scott loses brilliant solution forever

J. O. Wobbrock ~ September 21, 2001Human Computer Interaction Institute ~ Carnegie Mellon University Related Work: Inner Windows 1.Weiser, M. (1991) The Computer of the Twenty-First Century. In Scientific American, 10, September Weiser, M. and Brown, J.S. (1995) Designing Calm Technology. mtech.htm mtech.htm 3.Weiser, M. and Brown, J.S. (1996) The Coming Age of Calm Technology. ndnote.htm ndnote.htm

J. O. Wobbrock ~ September 21, 2001Human Computer Interaction Institute ~ Carnegie Mellon University The “Welcome, Matt” (W.M.)  Facilitates bi-directional flow of information Uses situational awareness to give information to those outside of state inside Uses situational awareness to deem when messages from outside are presented inside  Information displayed outside subject to configuration & override by office inhabitant  Office inhabitant can view messages from visitors on computer

J. O. Wobbrock ~ September 21, 2001Human Computer Interaction Institute ~ Carnegie Mellon University Example: Inside to Outside

J. O. Wobbrock ~ September 21, 2001Human Computer Interaction Institute ~ Carnegie Mellon University Example: Outside to Inside

J. O. Wobbrock ~ September 21, 2001Human Computer Interaction Institute ~ Carnegie Mellon University Example con’t…

J. O. Wobbrock ~ September 21, 2001Human Computer Interaction Institute ~ Carnegie Mellon University Technology Requirements  W.M. hardware  Sensing number of room inhabitants  Sensing general locations of inhabitants At computer, at desk, on couch, on phone  Bonus: Identifying room inhabitants

J. O. Wobbrock ~ September 21, 2001Human Computer Interaction Institute ~ Carnegie Mellon University Scenario I (Revised)  Scott Hudson is grading homework and wants it quiet, so he closes the door  Judy Teeay comes by with more ungraded assignments, sees W.M. displaying “Scott Hudson is at his desk.”  Judy knocks; Scott is grateful for more assignments to grade. Judy goes out for pizza and beer

J. O. Wobbrock ~ September 21, 2001Human Computer Interaction Institute ~ Carnegie Mellon University Scenario II (Revised)  Sara Kiesler is on her way to an important faculty meeting  She knows Scott Hudson is cranking code and may not be able to come  Sara swings by Scott’s office; Door is closed  Sara sees on W.M. that Scott is at his computer He’s coding 20 w.p.m.  Sara leaves message Delivered when typing stops for 2 minutes

J. O. Wobbrock ~ September 21, 2001Human Computer Interaction Institute ~ Carnegie Mellon University Wizard of Oz for  Determine how people respond to various messages on W.M. outside office  Identify what information on W.M. is useful  Identify what messages might be left on W.M.  Explore design of W.M. and capabilities

J. O. Wobbrock ~ September 21, 2001Human Computer Interaction Institute ~ Carnegie Mellon University Thanks! The end