Connector is the definition of a connection between two elements. This is also clearly reflected in the relationships between elements and the connector. Two foreign key connections have been set up for this purpose.

Table includes all elements present in the repository. Please note that this determines how an element looks in diagrams and which compartments become visible in the diagrams based on the object_type and stereotype.

Package is actually used for structuring the contents of the repository. It is based on packages and subpackages hence a self reference to the package table via a parent_id