Role of System Readiness Level (SRL) in Integration, Interoperability, and Standardization for System Security

This abstract summarizes the application of System Readiness Level (SRL) as a governing metric for evaluating the maturity of System Security through the lenses of integration, interoperability, and standardization. In the development of complex, multi-domain systems, individual component maturity (Technology Readiness Level) often fails to account for the security vulnerabilities that emerge during subsystem convergence. This paper/discussion examines the System Readiness Level (SRL)—a composite index derived from the interaction between Technology Readiness Levels (TRL) and Integration Readiness Levels (IRL)—as a critical framework for System Security. By quantifying the maturity of secure interfaces, SRL provides a systematic method for ensuring that security controls are not only technically sound but also integrated into the system architecture without creating new attack vectors. Furthermore, the framework enhances interoperability by standardizing the criteria for secure data exchange across disparate platforms. Through the adoption of SRL, organizations can transition from fragmented security assessments to a standardized, holistic maturity model, ultimately reducing acquisition risk and ensuring that the final system is operationally ready to defend against evolving cyber threats.