11.5 VISUALIZATION OF RELATIONS arelation is an association between two or more items The information is located in the fact that several data values associated in some way Ubiquitous in many application domain Trees, graphS, and venn diagrams11.5 VISUALIZATION OF RELATIONS • A relation is an association between two or more items • The information is located in the fact that several data values associated in some way • Ubiquitous in many application domain • Trees, graphs, and venn diagrams