Overview of Model Based Systems Engineering

Abstract

Model-Based Systems Engineering (MBSE) is an emerging methodology that enhances traditional modeling and systems engineering practices. It supports the development of the Concept of Operations (ConOps), as well as requirements, design, testing, risk management, configuration management, verification, and validation of the system design. MBSE serves as a crucial enabler for program managers and systems engineers, facilitating programmatic and technical decisions that can impact the integration and interoperability of various systems. Compared to the conventional document-based approach, MBSE offers significant advantages. In a document-based methodology, various authors produce multiple documents to capture the system's needs and design. In contrast, MBSE establishes an authoritative source of truth (ASOT) for the system, creating descriptive and specific views through model elements. Utilizing MBSE can bring a range of benefits to a program, including improved communication among scientists, systems engineers, program/project managers, and stakeholders. This is achieved using diagrams and tables that support development and help identify potential issues and risks that may arise during integration and testing activities. MBSE comprises three key components: Method, Language, and Tools. The method helps capture essential system artifacts, such as requirements. The language fosters effective communication among stakeholders by employing a common modeling language, such as the Systems Modeling Language (SysML). Finally, tools are developed to support the method and language, with Cameo Systems Modeler being a commonly utilized tool.