Requirements in Model-Based Systems Engineering (MBSE)

Model-based systems engineering (MBSE) is a formalized methodology that supports the requirements, design, analysis, verification, and validation associated with the development of complex systems. MBSE in a digital-modeling environment provides advantages that document-based systems engineering cannot provide. These advantages have led to increased and growing adoption since MBSE can save costs by reducing development time and improve the ability to produce secure and correctly functioning software. The SEI CERT Division has begun researching how MBSE can also be used to mitigate security risks early in the system-development process so that systems are secure by design, in contrast to the common practice of adding security features later in the development process.