We present MeLVin-MEta Language for VIsualization, a meta-declarative language and a graphical framework to design interactive and coordinated views applications for visualization. Our framework is an abstraction layer placed over existing visual grammars and visualization declarative languages, providing them with interoperability mechanisms. The main contribution of this research is to provide a user-friendly system to design visualization and processing cards that can be interconnected to form data analysis workflows. Cards and workflows can be saved, distributed and reused between users. We describe the characteristics of the framework, as well as two representative case studies to illustrate its capabilities. We also compare MeLVin with previous related works, discussing its advantages and disadvantages with respect to other frameworks.
MeLVin is available online at: https://gmrv.es/gmrvvis/melvin/app/
GitHub repository: https://github.com/gmrvvis/MeLVin
The research leading to these results has received funding from the following entities: The European Union’s Horizon 2020 Research and Innovation Programme under grant agreement no. HBP604102 (785907 - SGA2), the Spanish Government under grants C080020-09 (Cajal Blue Brain Project, Spanish partner of the Blue Brain Project initiative from EPFL) and TIN2017-83132-C2-1-R (VIANA).