1. Engineering Resilience for Complex Systems

In recent years there has been an increased need for resilience in complex military and civilian systems due to evolving adversarial and environmental threats. Engineered Resilient Systems (ERS) is a Department of Defense (DoD) program focusing on the effective and efficient design and development of complex engineered systems. These complex systems need to be resilient to threats throughout their life cycle. However, most current engineering resilience literature focuses on systems with a single function and a single measure. Today’s systems are becoming more complex, with multiple functions and measures involving critical trade-offs during early life cycle stages. This paper develops criteria for a framework to incorporate resilience into DoD analysis of alternatives (AoA). Using the criteria, this paper creates a framework for defining and evaluating complex engineered systems that consider many missions, scenarios, uncertainties, functions, and measures. Lastly, using the criteria and the framework, the current literature is shown to have gaps for incorporating resilience into DoD AoAs.