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Interfaces and Tools for the Library of Congress National Digital. Gary Marchionini. Catherine Plaisant. Anita Komlodi. February 1998.
This paper describes a collaborative effort to explore user needs in a digital library, develop interface prototypes for a digital library, and suggest and prototype tools for digital librarians and users at the Library of Congress (LC). Interfaces were guided by an assessment of user needs and aimed to maximize interaction with primary resources and support both browsing and analytical search strategies. Tools to aid users and librarians in overviewing collections, previewing objects, and gatherin g results were created and serve as the beginnings of a digital librarian toolkit. The design process and results are described and suggestions for future work are offered. (Also cross-referenced as UMIACS-TR-98-09) University of Maryland Institute for Advanced Computer Studies, Department of Computer Science, University of Maryland,
Visualizing websites using a hierarchical table of contents browser:. David A. Nation. Catherine Plaisant. Gary Marchionini. Anita Komlodi. May 1997.
A method is described for visualizing the contents of a Web site with a hierarchical table of contents using a Java program and applet called WebTOC. The automatically generated expand/contract table of contents provides graphical information indicating the number of elements in branches of the hierarchy as well as individual and cumulative sizes. Color can be used to represent another attribute such as file type and provide a rich overview of the site for users and managers of the site. Early results from user studies suggest that WebTOC is easily learned and can assist users in navigating websites. (Also cross-referenced as UMIACS-TR-97-41) University of Maryland Institute for Advanced Computer Studies, Department of Computer Science, University of Maryland,
Bringing Treasures to the Surface - Iterative Design for the Library of. Catherine Plaisant. Gary Marchionini. Tom Bruns. Anita Komlodi. Laura Campbell. October 1996.
The Human-Computer Interaction Lab worked with a team of the Library of Congress (LC) to develop and test interface designs for LCUs National Digital Library Program. Three iterations are described and illustrate the progression of the design toward a compact design that minimizes scrolling and jumping and anchors users in a screen space that tightly couples search and results. Issues and resolutions are discussed for each iteration and reflect the challenges of incomplete metadata, data visualization, and the rapidly changing web environment. Human-Computer Interaction Laboratory, Univ. of Maryland, Digital Library Research Group, Univ. of Maryland, Dept. of Computer Science, Univ. of Maryland, National Digital Library Program, Library of Congress, Washington DC,
Gary Marchionini. Catherine Plaisant. Anita Komlodi. February 1996.
UserŐs Needs Assessment for the Library of CongressŐ National Digital Library. Understanding and assessing user needs is the first step in interface design, and this report is one of the first milestones in the overall design effort. This assessment provides an informed basis for the interface design and evaluation to be done in the months to come. It was prepared under the LibraryŐs contract with the Human-Computer Interaction Laboratory (HCIL) at the University of MarylandŐs to work together to design an interface for the LibraryŐs National Digital Library (NDL) Program. In order to determine user needs, HCIL conducted a survey of nine reading rooms with special emphasis on the Special Collections from which the content of the NDL will be drawn. HCIL also used questionnaires to reach remote audiences who may typify NDL users accessing the Library via the Internet. They also analyzed many of the documents available in the Reading Rooms, such as finding aids, other handouts, and user studies. Human Computer Interaction Laboratory, College of Library and Information Services, Univ. of Maryland, University of Maryland Institute for Advanced Computer Studies, Dept. of Computer Science, Univ. of Maryland,
Daniel Ostroff. Ben Shneiderman. Anita Komlodi. September 1987.
Selection devices for users of an electronic encyclopedia: an. This study measured the speed, error rates, and subjective evaluation of arrow-jump keys, a jump-mouse, number keys, and a touch screen in an interactive encyclopedia. A summary of previous studies comparing selection devices and strategies is presented to provide the background for this study. We found the touch screen to be the fastest in time, the least accurate, but the overall favorite of the participants. The results are discussed and improvements are suggested accordingly. (Also cross referenced as CAR-TR-321) Human Computer Interaction Laboratory, Dept. of Computer Science, Univ. of Maryland,
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