Task Cube: A Three-Dimensional Conceptual Space of User Tasks in Visualization Design and Evaluation

A. Rind, W. Aigner, M. Wagner, S. Miksch, T. Lammarsch:
"Task Cube: A Three-Dimensional Conceptual Space of User Tasks in Visualization Design and Evaluation";
Information Visualization,Online First, published online before print December 27, 2015(2015), S. 1 - 20.

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Abstract:


User tasks play a pivotal role in visualization design and evaluation. However, the term `task´ is used ambiguously within the visualization community. In this article, we critically analyze the relevant literature and systematically compare definitions for `task´ and the usage of related terminology. In doing so, we identify a three-dimensional conceptual space of user tasks in visualization, referred to as task cube, and the more precise concepts `objective´ and `action´ for tasks. We illustrate the usage of the task cube´s dimensions in an objective-driven visualization process, in different scenarios of visualization design and evaluation, and for comparing categorizations ofabstract tasks. Thus, visualization researchers can better formulate their contributions which helps advance visualization as a whole.