MOSA and Vetronics: What Open Architecture Mandates Mean for Armored Vehicle HMI Suppliers
The U.S. Department of Defense has made its position clear: every major defense acquisition program must now be designed using a Modular Open Systems Approach (MOSA). For suppliers of human-machine interface components in armored vehicles, this mandate reshapes how products are specified, qualified, and integrated — and it creates both new demands and new opportunities.
What MOSA Actually Requires
MOSA vetronics is not a single technical standard but a philosophy of design that demands open interfaces, published standards, and components that can be upgraded or replaced without rebuilding the surrounding system. Under U.S. law, all Major Defense Acquisition Programs must comply with MOSA to the maximum extent practicable. The Secretary of Defense has identified MOSA as a primary lever for “accelerating the speed of relevance” in the face of rapidly modernizing adversaries.
In practical terms, MOSA for ground vehicles means components must conform to recognized open standards rather than proprietary interfaces that create vendor lock-in. Procurement officers are specifically directed to avoid dependencies that prevent competitive re-sourcing of subsystems over a platform’s lifecycle.
The Key Standards: VICTORY, SOSA, and CMOSS
Three frameworks dominate the vetronics open architecture landscape:
• VICTORY (Vehicular Integration for C4ISR/EW Interoperability): defines electrical and data interfaces for vehicle electronics, enabling subsystems from different vendors to communicate on a common backbone.
• CMOSS (C5ISR/EW Modular Open Suite of Standards): extends MOSA to command, control, communications, computers, cyber, intelligence, surveillance, and reconnaissance systems within vehicles, addressing interoperability and lifecycle cost in military vehicle electronics.
• SOSA (Sensor Open Systems Architecture): governs the packaging and interface standards for sensor and processing hardware, particularly relevant for display and processing subsystems.
Together, these frameworks define what it means for an HMI component to be “open architecture compliant” in a vetronics context. Suppliers who understand and design to these standards are far better positioned on program source selections than those offering capable but proprietary solutions.
Why This Matters for Display and Control Interface Suppliers
For manufacturers of open architecture armored vehicle displays, MOSA compliance is increasingly a gate requirement, not a differentiator. Prime integrators building to CMOSS or VICTORY architectures require that display subsystems present standardized interfaces and support software-defined reconfiguration. A display that requires proprietary drivers or custom integration work introduces exactly the kind of lifecycle risk that MOSA is designed to eliminate.
The practical implication: HMI suppliers must invest in standards compliance as a core engineering activity, not an afterthought. This includes interface documentation, open-standard communication protocols, and design architectures that permit field upgrades without hardware replacement.
Lifecycle Cost: The Procurement Argument
The vetronics upgrade lifecycle cost argument for MOSA is compelling. Legacy proprietary systems require expensive, sole-source maintenance contracts and face obsolescence risk when the original supplier exits the market or discontinues a component. Open architecture systems allow competitive re-sourcing of obsolete components, software updates that extend functional life, and incremental capability insertion without full system replacement.
For program managers operating under constrained budgets and long platform service lives — often 30 to 40 years for main battle tanks — this lifecycle cost advantage is decisive. MOSA-compliant HMI components deliver better total cost of ownership, not just lower acquisition cost.
The Next-Generation Combat Vehicle and Beyond
The U.S. Army’s Next-Generation Combat Vehicle programs, along with allied modernization initiatives in Europe and the Asia-Pacific, are being designed as MOSA-native from the outset. These programs represent the leading edge of an industry-wide transition that will eventually reach every armored platform in service. Suppliers who build MOSA compliance into their product architecture today will be positioned to compete across this entire wave of programs.
AEROMAOZ: Built for Open Architectures
AEROMAOZ develops rugged HMI solutions for armored vehicles with modular architectures that support open-standard integration. As a qualified supplier to major defense primes including Elbit Systems, BAE Systems, and Honeywell, AEROMAOZ has the certification pedigree and systems integration experience to deliver compliant, future-proof solutions across both new-build and upgrade programs.
Learn more at aeromaoz.com.