The VISH Data and Control Flow Model

VISH employs a pull event model, ie any action is induced by the last object in an data flow graph.

Depending on the main application, this might be a meta-viewer or a single viewer. The change of any input object does not induce any action at all, except possible adjustment of GUI objects. However, the MemCore::Ageable::Age() of this input object will be changed and indicate inconsistency of all dependent objects.