Query previews for networked information systems: a case study with NASA environmental data

Authors:
Khoa Doan;Catherine Plaisant;Ben Shneiderman;Tom Bruns
Affiliations:
Hughes STX Corp, 7701 Greenbelt Rd. Suite 400, Greenbelt MD;Human-Computer Interaction Laboratory, Institute for Advanced Computer Studies, University of Maryland, College Park, MD;Department of Computer Science and Institute for Systems Research, University of Maryland, College Park, MD;Human-Computer Interaction Laboratory, Institute for Advanced Computer Studies, University of Maryland, College Park, MD
Venue:
ACM SIGMOD Record
Year:
1997

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Abstract

Formulating queries on networked information systems is laden with problems: data diversity, data complexity, network growth, varied user base, and slow network access. This paper proposes a new approach to a network query user interface which consists of two phases: query preview and query refinement. This new approach is based on dynamic queries and tight coupling, guiding users to rapidly and dynamically eliminate undesired items, reduce the data volume to a manageable size, and refine queries locally before submission over a network. A two-phase dynamic query system for NASA's Earth Observing Systems--Data Information Systems (EOSDIS) is presented. The prototype was well received by the team of scientists who evaluated the interface.