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           DEPARTMENT OF COMPUTER SCIENCE
             COLORADO STATE UNIVERSITY


      THE THIRTEENTH BMAC DISTINGUISHED LECTURE


	Speaker:  Ben Shneiderman, Professor
		  Department of Computer Science
		  University of Maryland, College Park, MD

	   Date:  Friday, February 21, 1997

	   Time:  Coffee and Pastries, 8:00 a.m.
	          Presentation 8:30 a.m.

	  Place:  Lincoln Center-Ludlow Room
		  417 West Magnolia, Fort Collins

     USER INTERFACES FOR INFORMATION VISUALIZATION

The next generation of databases, CD-ROMs and the information 
superhighway will offer directory browsing, information retrieval, 
hypermedia, video-on-demand, home shopping, scientific data man-
agement, and library systems through novel graphical and direct 
manipulation user interfaces. To meet the raised expectations of 
users of these tools, we have developed Visual Information 
Seeking (VIS) principles to support fact-finding and browsing by 
novices and experts.

We include dynamic query methods with continuous visual presen-
tation of results as the query is changed (using sliders, 
buttons, maps), color-coded 2-D space-filling treemaps to show 
hierarchies in a single display (hundreds of directories and 
more than 3000 files can be seen at once), and the starfield 
display (a zoom-able 2-D display with thousands of selectable 
points of light).  We present empirical data from usability 
studies and controlled experiments.

Applications are drawn from medical data on cancer rates, real 
estate brokerage information on finding a home, stock market 
portfolios, film libraries, and hierarchical directories on 
computers, but the methods generalize to many hierarchical, 
relational, and multi-dimensional information spaces.  User 
control over the display and rapid feedback offer videogame-
like interaction that is highly engaging.

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Ben Shneiderman is a Professor in the Department of Computer 
Science, Head of the Human-Computer Interaction Laboratory, 
and Member of the Institute for Systems Research, all at the 
University of Maryland at College Park. He has taught pre-
viously at the State University of New York and at Indiana University.

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Friends and colleagues of Dr. Barney Marschner, late Professor 
and Chairman of the Department of Computer Science, established 
Barney's Monday Afternoon Club to honor Barney at his retirement.  
Each year an eminent computer scientist is designated as the BMAC 
Distinguished Lecturer.  Past speakers have included Jack Dennis, 
John Holland, Laszlo A. Belady, Frances E. Allen, Oscar Garcia, 
and Ken Kennedy.

Contributions to the BMAC Fund may be made through the Colorado 
State University Foundation, Colorado State University, Fort 
Collins, CO  80523.