Tab "Concept Editor"
This tab contains a tree displaying the concepts and the relations. Concepts are an abstract representation for an entity, for instance a table. A relationship is a relation between two concepts. To create a concept or a relation read the "Insert"-Menu.

To get more information about a concept or a relation doubleclick the element in the tree. A dialog opens with more and detailed informations about the concept or the relation. In this dialog you can also edit the concept or the relation.