Chapter 4. Knowledge of system as an element of cybersecurity argument
System assurance embraces the entire system life cycle from the conception of ideas through to the retirement of a system. Systematic evaluation of the system's security posture requires a common framework to improve knowledge sharing between diverse disciplines and to identify, utilize, and manage relevant knowledge units in an integrated, coherent fashion. This framework involves a preselected vocabulary to describe systems, their external boundaries and internal resolution, behaviors, security policy, safeguards, and the entire assurance case.
This chapter describes the elements of the common vocabulary for managing facts about the system of interest as part of the ...