Evaluating the usability of visualization methods in an exploratory geovisualization environment

E. L. Koua, A. Maceachren, M. J. Kraak

Research output: Contribution to journalArticlepeer-review

96 Scopus citations


The use of new representation forms and interactive means to visualize geospatial data requires an understanding of the impact of the visual tools used for data exploration and knowledge construction. Use and usability assessment of implemented methods and tools is an important part of our efforts to build this understanding. Based on an approach to combine visual and computational methods for knowledge discovery in large geospatial data, an integrated visualization-geocomputation environment has been developed based on the Self-Organizing Map (SOM), the map and the parallel coordinate plot. This environment allows patterns and attribute relationships to be explored. A use and usability assessment is conducted to evaluate the ability of each of these visual representations to meet user performance and satisfaction goals. In the test, different representations are compared while exploring a socio-demographic dataset.

Original languageEnglish (US)
Pages (from-to)425-448
Number of pages24
JournalInternational Journal of Geographical Information Science
Issue number4
StatePublished - Apr 2006

All Science Journal Classification (ASJC) codes

  • Information Systems
  • Geography, Planning and Development
  • Library and Information Sciences


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