This is a nice slide for an executive briefing. However, to get anything useful out of threat modeling you really need a full architecture view to start with.

This is a nice slide for an executive briefing. However, to get anything useful out of threat modeling you really need a full architecture view to start with. This would include both the technology and the business processes. Few organizations are willing to put effort and resources into developing these and there are few, if any, tools to help.