Model-based systems engineering (MBSE) and enterprise architecture (EA) are two complementary approaches to systems transformation planning. MBSE is a systems engineering methodology that uses models to represent the system, its environment, and its stakeholders. EA is a business discipline that deals with the structure and behavior of an organization.

The main differences between MBSE and EA are:

• Scope: MBSE focuses on the system, while EA focuses on the organization.
• Methodology: MBSE uses models to represent the system, while EA uses a variety of methods, including modeling.
• Goals: MBSE aims to create a system that meets its requirements, while EA aims to create an organization that is effective and efficient.

MBSE and EA can be used together to create a more holistic view of the system and the organization. MBSE can be used to model the system, while EA can be used to model the organization. By using both MBSE and EA, organizations can improve their ability to design, develop, and deliver complex systems.

Here are some additional details about each approach:

MBSE

MBSE is a systems engineering methodology that uses models to represent the system, its environment, and its stakeholders. MBSE models can be used to communicate requirements, design solutions, and verify and validate the system.

MBSE has a number of benefits, including:

• Improved communication: MBSE models can be used to communicate requirements and designs to stakeholders in a clear and concise way.
• Improved design: MBSE models can be used to explore different design alternatives and to identify potential problems early in the design process.
• Improved verification and validation: MBSE models can be used to verify and validate the system against its requirements.

EA

EA is a business discipline that deals with the structure and behavior of an organization. EA is used to understand the organization’s current state, to identify opportunities for improvement, and to plan for future changes.

EA has a number of benefits, including:

• Improved understanding of the organization: EA provides a holistic view of the organization, which can help to improve understanding of its structure, behavior, and processes.
• Identification of opportunities for improvement: EA can be used to identify opportunities for improvement in the organization’s structure, processes, and systems.
• Planning for future changes: EA can be used to plan for future changes in the organization’s environment, such as new technologies or new markets.

By using both MBSE and EA, organizations can improve their ability to design, develop, and deliver complex systems.

Authored by Dr. Steve Else, Chief Architect & Principal Instructor