Taskposé: A Dynamic Task-Based Window Management Aid

.............................................................................................................................. 2 Introduction......................................................................................................................... 4 What’s In a Window? ..................................................................................................... 5 Related Work ...................................................................................................................... 5 Tasks in Cognitive Psychology and Human-Computer Interaction ............................... 5 Tasks and Windows Managers ....................................................................................... 6 “Fuzzy,” Continuously-Changing Tasks ........................................................................ 8 Open Questions............................................................................................................... 9 Fieldwork .......................................................................................................................... 11 Goals ............................................................................................................................. 11 Method .......................................................................................................................... 11 Results........................................................................................................................... 11 Discussion of the Observational Study ......................................................................... 14 From Classification to Association................................................................................... 14 Taskposé ........................................................................................................................... 15 Design Goals................................................................................................................. 15 Interaction with Taskposé ............................................................................................. 16 Switching Windows ...................................................................................................... 18 Implementation and Algorithms ....................................................................................... 18 The WindowRank Algorithm: Determining Window Importance ............................... 19 The Window Relationship Heuristic: WindowRank Applied ...................................... 20 Graph Visualization and Updating................................................................................ 21 Evaluation ......................................................................................................................... 22 First-Use Study ............................................................................................................. 23 Longitudinal Evaluation................................................................................................ 23 Results............................................................................................................................... 24 Association over Classification..................................................................................... 24 Scaling........................................................................................................................... 25 Window Importance and Relationships ........................................................................ 25 Logging Results ............................................................................................................ 25 Design Improvements ................................................................................................... 26 Conclusions and Future Work .......................................................................................... 26 Acknowledgements........................................................................................................... 27 References......................................................................................................................... 27 Appendix I: Example Coded Video Data Set ................................................................... 31