Fig. 4
From: Genomic data integration and user-defined sample-set extraction for population variant analysis
Relational data model for VarSum. It is composed by a table for the region data of each data source (e.g., 1000 Genomes Project - KGENOMES, TCGA, GENCODE) and one materialized view (METADATA) providing fast access to the metadata of all sources. The materialized view is obtained as a selection of the most important attributes for VarSum from those comprehensively available in the tables of the database [21] based on the Genomic Conceptual Model [35], here represented only through their names