Authors:
Mohammad A. Kuhail
;
Soren Lauesen
and
Kostas Pantazos
Affiliation:
IT University of Copenhagen, Denmark
Keyword(s):
Visual Mapping, Inspector, Cognitive Artefacts, Information Visualization Tools, Custom Visualizations.
Related
Ontology
Subjects/Areas/Topics:
Computer Vision, Visualization and Computer Graphics
;
General Data Visualization
;
Information and Scientific Visualization
;
Usability Studies and Visualization
Abstract:
Existing custom visualization tools provide cognitive artefacts that can reduce the cognitive barriers designers encounter in visual mapping, mapping data to visual primitives (e.g. ellipse, rectangle) and their properties (e.g. colour, size.) However, our experience with designers shows that the existing artefacts are insufficient. In particular, designers struggle to understand the relationship between visual primitives, their properties, and
data. Moreover, it is hard to verify the correctness of the visual mappings. In response, we developed a new cognitive artefact, the inspector, that explicitly shows the data behind visual primitive and their properties. We evaluated the impact of the inspector on usability with seven designers. The result shows that the inspector reduced usability problems and helped designers verify the visual mappings.