Despite the huge power and potential of AVEVA E3D™, the database is structured in a very simple and logical form. The database is
hierarchical, a tree like structure, as illustrated below.
In this hierarchical structure all the database elements are
owned by other elements, with the exception of the WORLD. Elements that are owned by another element, for example a ZONE is owned by a SITE, are said to be
members of the owning element, for example the ZONE is a member of the SITE.