Model-Based Systems Engineering (MBSE)

MBSE is the practice of capturing system requirements, design, analysis, and verification in formal computer-readable models rather than documents. The dominant tools are Cameo Systems Modeler, IBM Rhapsody, Capella, and SysML or SysML v2 as the language. The promise is a single source of truth. The reality is rougher: adoption needs a culture change most organizations struggle with. Where it works, programs cut requirement-defect counts by 30 to 50 percent. SysML fluency is the differentiator on most aerospace systems-engineering postings in 2026. Roles where this matters: Systems Engineering, Software Engineering, Engineering.