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Perceptual complexity of soil-landscape maps: a user evaluation of color organization in legend designs using eye tracking

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International Journal of Digital Earth 2017年第6期10卷 560-581页

作者： Arzu Coltekin Alzbeta Brychtova Amy L.Griffin Anthony C.Robinson Mark Imhof Chris Pettit Department of Geography University of ZurichZürichSwitzerland School of Physical Environmentaland Mathematical SciencesUNSWCanberraAustralia GeoVISTA Center Department of GeographyThe Pennsylvania State UniversityState CollegePAUSA Department of Economic Development JobsTransport and ResourceState Government of VictoriaAgriculture Victoria City Futures Research Centre University of New South WalesSydneyAustralia

We compared the ability of two legend designs on a soil-landscape map to efficiently and effectively support map reading tasks with the goal of better understanding how the design choices affect user *** such knowledge is essential to design effective interfaces for digital earth *** of the two legends contained an alphabetical ordering of categories,while the other used a perceptual grouping based on the Munsell color *** tested the two legends for 4 tasks with 20 experts(in geography-related domains).We analyzed traditional usability metrics and participants’eye movements to identify the possible reasons behind their success and failure in the experimental ***,an overwhelming majority of the participants failed to arrive at the correct responses for two of the four tasks,irrespective of the legend ***,participants’prior knowledge of soils and map interpretation abilities led to interesting performance differences between the two legend *** discuss how participant background might have played a role in performance and why some tasks were particularly hard to solve despite participants’relatively high levels of experience in map *** on our observations,we caution soil cartographers to be aware of the perceptual complexity of soil-landscape maps.

关键词： Soil-landscape maps legend design visual complexity color empirical study eye tracking

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