MBSE
Model-Based Systems Engineering (MBSE)
Model-Based Systems Engineering (MBSE) is a methodology that applies formalized modeling to support the specification, design, analysis, verification, and validation of complex systems. It replaces or complements traditional document-based systems engineering with models as the primary means of information exchange.
Overview
MBSE integrates system requirements, design, analysis, and validation activities within a model-based framework. The approach provides a unified representation of system behavior, structure, and requirements, allowing engineers to visualize interactions and dependencies early in the development lifecycle.
Key Concepts
- System Model: Central to MBSE, the system model represents various aspects of the system—such as requirements, behavior, architecture, and interfaces—using standardized modeling languages.
- SysML (Systems Modeling Language): A widely adopted modeling language for MBSE, extending UML to better represent system-level concepts.
- Digital Thread: The continuous data flow connecting all system lifecycle stages through the model.
- Traceability: MBSE enables traceability from requirements through design to testing and validation.
Benefits
- Improved communication among stakeholders through visual models.
- Enhanced consistency and traceability of requirements and design elements.
- Early error detection and design validation, reducing rework costs.
- Support for simulation and analysis, leading to better decision-making.
Tools and Standards
Common MBSE tools include Cameo Systems Modeler, IBM Rational Rhapsody, Enterprise Architect, and Capella. Standards and frameworks such as INCOSE’s MBSE Vision 2035, ISO/IEC/IEEE 15288, and OMG SysML provide guidance and interoperability.
Applications
MBSE is widely used in industries like aerospace, defense, automotive, and healthcare—where systems are complex, safety-critical, and highly integrated.