Readability of a background map layer under a semi-transparent foreground layer

S. Luz, M. Masoodian

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract / Description of output

This study investigates the readability (interpretability) of information presented on a geographical map onto which a semi-transparent multivariate selection layer has been overlaid. The investigation is based on an information visualization prototype developed for a mobile platform (tablet devices) which aimed at supporting epidemiologists and medical staff in field data collection and epidemiological interpretation tasks. Different factors are analysed under varying transparency (alpha blending) levels, including: map interpretation task (covering "seeing map" and "reading map" tasks), legend symbol and map area type. Our results complement other studies that focused on the readability characteristics of items displayed on semi-transparent foreground layers developed in the context of "toolglass" interfaces. The implications of these results to the usability of transparency variable selection layers in geographical map applications are also discussed.
Original languageUndefined/Unknown
Title of host publicationProceedings of the International Working Conference on Advanced Visual Interfaces
Place of PublicationNew York, NY, USA
Number of pages8
ISBN (Print)978-1-4503-2775-6
Publication statusPublished - May 2014

Publication series

NameAVI '14

Keywords / Materials (for Non-textual outputs)

  • epidemiology, geographical maps, information visualization, transparency

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