Z. Dobesova
Monday 5 August 2013 by Libadmin2013

References: 13th SGEM GeoConference on Informatics, Geoinformatics And Remote Sensing, www.sgem.org, SGEM2013 Conference Proceedings, ISBN 978-954-91818-9-0 / ISSN 1314-2704, June 16-22, 2013, Vol. 1, 603 - 610 pp


Entity relation (ERA) diagrams are use in the stage of conceptual design of database.
Geographic information systems are often based on a geodatabase where the spatial data
and attribute data are stored together. Software ArcGIS Diagrammer is used for the
design of ArcGIS geodatabase. A set of graphical symbol is used for geodatabase
design. The symbols are boxes with color fill. Arrow connectors join some elements.
The aesthetic, cognitive and perceptual quality of geodatabase diagram is important for
comprehension by user. The perception depends on several aspects. A scientific method
called the Physics of Notation was suggested by Daniel Moody. The theory of visual
notation design is focused on the physical (perceptual) properties of notations rather
than their logical (semantic) properties [1]. Some of the nine principles from the Physics
of Notations will be applied for ArcGIS Diagrammer. The main aim of this article is an
evaluation of visual notation in ArcGIS Diagrammer.

Keywords: geoinformatics, visual programming language, diagram, cognition,
perception, database

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