Abstract: Pittsburgh Greenmap is an online interactive service for locating information concerning environmental, recreational, and other “green” assets in southwestern Pennsylvania. The service is innovative along two dimensions: Its user interface introduces a unique navigation/query paradigm that combines information-centric map displays, dynamic query, and zoom-driven aggregation. The result is a highly approachable interface optimized to emphasize “locality” in information display. Secondly, the system is based upon a distributed data entry/maintenance model designed to support a single information space maintained by hundreds of independent organizations and individuals, each in charge of a large or small amount of data and minimal oversight by a central authority. The result serves as a prototype for a genuinely public “civic information space.”
Keywords: Civic Computing, GIS, Information-Centric Computing, Dynamic Query
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