Ch 4, HCI Remixed Sutherland, Sketchpad: A Man-Machine Graphical Communication System Bederson, Hollan, Pad++: A Zooming Graphical Interface for Exploring Alternate Interface Physics

 Joseph A. Konstan  PhD Berkeley (CS)  Faculty at University of Minnesota, (CS&E)  Research areas:  HCI, recommender systems, online community, info visualization

 HCI has a place in CS  Drawing programs that “[take] full advantage of computing”  Pointing at  Rendering of basic objects  Making constraints visible and explicit  Programming Structures

 Ivan E. Sutherland  PhD, MIT, CSEE  Sketchpad developed as part of diss. work  Context of paper:  Published in 1963,  Influenced: GUIs, CAD, OOP, HCI

 Summary:  Lines, circles, text  Constraints  Ring structure, storage of objects, copying  Recursive functions  Light pen and pointing

 Benjamin B. Bederson  PhD, New York University, CS  Currently at UMD, HCIL  At the time of the paper, at Bell Communications Research (Computer Graphics & Interactive Media)  Research Areas: HCI, computer graphics,  James D. Hollan  PhD, University of Florida  Currently at UC San Diego, Dept of Cognitive Science  At the time of the paper, at UNM, CS  Research Areas: HCI, distributed cognition, visualization

 Summary:  Digital objects with visible history  Zooming as a basic function of interaction  Local detail vs global context  Showing hyperlink relationships  Directory browser and databases  Limits of metaphor