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on Handheld Devices. http://www.cc.gatech.edu/gvu/ii/webpda. New Visualization Prototypes. Fisheye. Overview. Normal browser surrounded by a gutter. Icons provide context about other page elements surrounding your current position.

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slide1

on Handheld Devices

http://www.cc.gatech.edu/gvu/ii/webpda

New Visualization Prototypes

Fisheye

Overview

Normal browser surrounded by a

gutter. Icons provide context about other page elements surrounding

your current position.

Normal browser plus an overview displayed in the top right corner. Clicking on the overview navigates the browser.

Ongoing Work

SampleTest

While evaluating the prototypes, it was discovered that a significant problem is determining what are the right ways for a user to interact with a PDA.

Testing basic interaction techniques may lead to better overall designs for PDAs. One operation performed often is scrolling. Because of the small screen size, it is necessary to move down the screen to view the rest of the information.

Above we see a screenshot showing a list of names. At the bottom is the target name to find. An empirical study has been designed to evaluate the use of scrolling on small screens.

Special Thanks

This work is partially supported by Microsoft Corp. John Stasko (stasko@cc.gatech.edu) spends an undue amount of time advising me.