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After reading the NSDocumentController, NSDocument, NSWindowController parts I am not sure if I can use this pattern for a similar design used as for the ServerManager. I’v got problems with this Document behaviour with the idea that I should be able to open more then one window with different views or with a same view from a loadable NIB. I remember in the past that I did read something about this, but couldn’t find it.

I’v got so far in UML.

Does someone has any suggestions.