Model

the model of an application is basically the data the application works on. it describes what entities exist and in what relation they stand to each othter. in case of vvvv this would be patches, nodes, pins, links, etc. and a patch would have several nodes, a node would have several pins and so on.

the model can be serialized and deserialized, it therefor can be saved to disk or loaded from disk, sent via network etc.
commands are used to edit the model. each change in the model emits events, which other layers can subscribe to and change their state accordingly.

View

the view is the mediator between the model and the viewer. it tells the viewer how to look at the model. it also serves as a ... to be continued

Viewer