The Software, Simulation, Systems Engineering and Integration Directorate provides collaborative and innovative life cycle systems engineering, software engineering, modeling and simulation, systems development, prototyping, and technical systems management products and solutions.

S3I provides mission excellence in all disciplines, staying focused on the customer to enable delivery of solutions to the Warfighter. S3I comprises a highly skilled, credible, and diverse workforce that is responsive to customer requirements: cost, schedule, and performance.

The S3I mission: Develop and deliver responsive aviation and missile total life cycle systems engineering, prototyping, cyber, software, protective technologies, and systems simulation engineering to enable readiness and ensure modernization of the U.S. Army to optimize joint Warfighter capabilities at the point of need.

Divisions

Life Cycle Engineering

Aviation Systems and Simulators

Missile Systems and Simulators

Trainers

Modeling & Simulation Technology

Army Missile Systems

Strategic & Operational Analysis

Software Sustainment

Interoperability/Test Support

Software Development

Prototype Integration Facility

Software Airworthiness

Verification & Validation

Software Quality/CM/Safety

Technical Management - Software & Cyber

Technical Management - Aviation

Technical Management – Missiles

Technical Management – Engineering

Technical Management – Defense

Information Ops

Protective Technologies