About the Office of SE&A

The Office of Systems Engineering and Architecture (SE&A) develops and promotes innovative engineering principles and techniques to advance DoD engineering practice. SE&A develops policy, guidance, standards, and best practice resources; manages DoD Standards; facilitates engineering-related communities of practice; and develops the defense engineering workforce by refining competency models and curricula. SE&A applies engineering and risk management expertise to inform decisions and improve system-of-systems architectures to reduce integration risk in mission-enabling systems. 

News and Events

News and events concerning Systems Engineering and Architecture.

Policy and Workforce

OUSD(R&E) Systems Engineering and Architecture (SE&A) leads policy, guidance, and workforce development initiatives for the DoD engineering and technical workforce. 

Systems Engineering

SE&A Systems Engineering (SE) focuses on modernizing SE practice, including using modular open systems approaches (MOSA) to build systems that can be upgraded to incorporate new technology and respond to emerging threats. 

Digital Engineering, Modeling & Simulation

DEM&S provides strategy, policy, guidance, and leadership to advance DoD practice in digital engineering and modeling and simulation.

Software Engineering

The purpose of Software Engineering (SWE) is to provide highly disciplined processes for software and system architecture, design, and development to ensure quality software for the warfighter. 

Specialty Engineering

Specialty engineering capabilities such as human systems integration (HSI), manufacturing and quality (M&Q), reliability and maintainability (R&M), and system safety engineering (SSE) are considered and applied throughout the life cycle of DoD systems.

Defense Standardization Program

Standardization is essential to the design, development, acquisition, and sustainment of defense systems.

Joint Architecture for Capabilities and Systems

Joint Architecture for Capabilities and Systems (JACS) promotes systems of systems fielded with speed, fidelity, and adaptability to enable continual evolution of U.S. warfighting dominance.  

world map, continents, blue, technology, screens, background, countries

Released: DoDI 5000.97

Released: API Technical Guidance

Contact Us & Info Sheet

Office of the Under Secretary of Defense,
Research and Engineering (OUSD(R&E))
3030 Defense Pentagon, Washington, DC 20301-3030