Title: A middleware framework to create data structures for a visual analytics object oriented approach

Authors: Juan Garcia, Diego A. Gomez Aguilar, Antonio Gonzalez, Francisco J. Garcia, Roberto Theron

Addresses: Faculty of Science, University of Salamanca, Plaza de los caidos s/n, 37008, Salamanca, Spain. ' Faculty of Science, University of Salamanca, Plaza de los caidos s/n, 37008, Salamanca, Spain. ' Faculty of Science, University of Salamanca, Plaza de los caidos s/n, 37008, Salamanca, Spain. ' Computer Science Department, Science Education Research Institute, GRIAL Research Group, University of Salamanca, Plaza de los caidos s/n, 37008, Salamanca, Spain. ' Faculty of Science, University of Salamanca, Plaza de los caidos s/n, 37008, Salamanca, Spain

Abstract: Visual analytics requires the use of large datasets and most of the times visualisations use their own data structures definition or make use of simple standards such as XML, CVS, or text files. Our proposal presents a middleware framework that focuses on providing a way to create those data structures, allowing to access heterogeneous data sources. The framework allows defining data structures for different visualisations using the same dataset as well as makes easier the process of getting the data from different sources. It dynamically creates the objects according to the defined structures and populates them with the values in the data sources. We have implemented a first prototype, which is discussed in the results presented on this paper.

Keywords: middleware framework; data structures; object oriented modelling; visual analytics; visualisation.

DOI: 10.1504/IJKL.2010.034757

International Journal of Knowledge and Learning, 2010 Vol.6 No.2/3, pp.256 - 267

Published online: 21 Aug 2010 *

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