TY - JOUR AU - MacEachren, Alan M. AU - Cai, Guoray AU - Brewer, Issac AU - Chen, Jin PY - 2006/06/01 Y2 - 2024/03/28 TI - Supporting Map-based Geocollaboration Through Natural Interfaces to Large-Screen Displays JF - Cartographic Perspectives JA - CP VL - 0 IS - 54 SE - Featured Articles DO - 10.14714/CP54.344 UR - https://cartographicperspectives.org/index.php/journal/article/view/cp54-maceachren-et-al SP - 16-34 AB - <p>Groups usually carry out science and decision-making activities involving geographic information. However, current mapping and related geospatial technologies are not group-friendly, and attempts to extend (or reinvent) technologies for group use have been largely ad hoc. Elsewhere, we have developed a comprehensive conceptual approach to geocollaboration that provides a framework for both studying collaborative work with geospatial information (and technologies) and the development of new technologies designed to support group work. We are applying that approach to a range of prototype systems that support same- and different-place as well as same- and different-time group activities.</p><p>Our focus in this paper is on same-time, same-place group work environments that enable that work through use of large-screen displays supporting natural, human-system dialogue and multi-user interaction. Two environments are described and compared. Both make use of hand gestures as a mechanism for specifying display locations. One adopts a combined wall map/white board metaphor while the other adopts a drafting table metaphor. We focus on crisis management as a typical use case.</p> ER -