Apply MBSE, MBSA, and Digital Engineering methods to develop and maintain authoritative digital engineering artifacts that establish traceability across stakeholder needs, operational concepts, system architectures, requirements, interfaces, constraints, analyses, and verification activities within an integrated digital thread. Have developed and maintained SysML models and architecture artifacts, including block definition diagrams, internal block diagrams, activity diagrams, sequence diagrams, state machine diagrams, requirements diagrams, parametric models, and allocation relationships.