  Cyber ranges mimic real-world cyber environments and are in high demand.
Before building their own cyber ranges, organizations need to deeply understand
what construction supplies are available to them. A fundamental supply is the
cyber range architecture, which prompts an important research question: Which
cyber range architecture is most appropriate for an organization's
requirements? To answer this question, we propose an innovative framework to
specify cyber range requirements, characterize cyber range architectures (based
on our analysis of 45 cyber range architectures), and match cyber range
architectures to cyber range requirements.
