The increasing demand of systems to extract data and to
help in the decision-making process stimulates the creation of
data-visualization solutions to work with much information in
different heterogeneous fields, for instance journal
infographics [8] or communication and online courses [9].
Most of these solutions are ad-hoc visualizations that are
created specifically on-demand to represent a single dataset (a
collection of related data) or they are based on specific
visualizations techniques, such as treemap [10].