Graphical Hierarchies

In order to structure a graphical specification, graphical hierarchies can be used. Graphical hierarchies do not influence the semantics of a block diagram but are used for structuring only.

A hierarchy contains a part of the block diagram. At its parent level of the diagram, it is visible only as a symbol. The lines that cross the border of the hierarchy, i.e. that connect elements inside the hierarchy with those outside, are represented by pins.

Hierarchies can be nested so that hierarchy blocks can contain other hierarchy blocks.

An icon can be assigned to hierarchies in the block diagram editor.