What are a case study (Fallbeispiel) and a 7-minute presentation in cyber security architecture, and when is the latter used?

A case study is a typical case that characterises or illustrates a particular situation; a 7-minute presentation is a short presentation reduced to the essentials, used when quick understanding and overview are needed instead of full plans, formal standards or detailed elaboration.

• Case studies are used to discuss typical architecture questions. They are fictional, clearly simplified compared to a real situation, and focus on the aspect being examined.
• 7-minute presentation: when decision-makers need to understand a situation fast, full-size plans, formal standards and detailed write-ups get in the way. A compact, very focused presentation works better. The name is a guide value, not a rule: it does not have to last exactly seven minutes.