The <b>Topology ABE</b> enables specifying Graphs and their instantiation.<br/>Graphs are mathematical structures used to model pairwise relations between objects. A graph in this context is made up of Vertices (also called nodes or points) which are connected by Edges (also called arcs, links or lines) [ ref graph theory - Wikipedia ].<br/>The Topology ABE is a pattern that can be used in different Domains by sub-classing its Entities and adding specificities.<br/>