Common Concepts Underlying Safety, Security, and Survivability Engineering

This technical note presents a consistent set of information models that identify and define the foundational concepts underlying safety, security, and survivability engineering. In addition, it shows how quality requirements are related to quality factors, subfactors, criteria, and metrics, and it emphasizes the similarities between the concepts that underlie safety, security, and survivability engineering. The information models presented in this technical note provide a standard terminology and set of concepts that explain the similarities between the asset-based, risk-driven methods for identifying and analyzing safety, security, and survivability requirements as well as a rationale for the similarity in architectural mechanisms that are commonly used to fulfill these requirements.