Modular Open Systems Approach (MOSA) is a business and technical strategy for developing new systems or modernizing existing ones. Adopting MOSA provides the ability to support and evolve capabilities over a system's life-cycle, and enables program teams to build, upgrade, and support systems more quickly and efficiently.
MOSA can be implemented by focusing on modular system design with well-defined interfaces. This approach is essential for change and evolution and emphasizes the importance of using industry-supported standards for component interfaces.
The short answer is yes. In 2017, congress passed the National Defense Acquisition Act (NDAA), requiring all Major Defense Acquisition Programs to adopt MOSA for the development, prototyping, and deployment of major weapon systems components or technology. The NDAA FY2021 builds on past directives, mandating program officers to identify, define, and document every model, and deliver modular system interfaces and associated documentation.
It’s hard to argue against making a Modular Open System Approach a priority. Whether retrofitting an electronic warfare system or developing a new capability in a fielded aircraft, the interoperability it enables is critical to the success of any mission.
When implemented properly, MOSA can be an enabler of significant benefits to programs and companies in the DoD ecosystem.
Transitioning to MOSA is a daunting task — especially for legacy systems and components built with proprietary designs. The good news is that you don't have to reinvent the wheel. Our Component Software Integration Platform, Tangram Pro™, simplifies the process of integrating mission-critical defense systems, and it's easy to use.
Our CSIP, Tangram Pro™, provides tools for automatically generating secure software interfaces for integration at the component and system level — while giving teams a simpler way to work together throughout the engineering lifecycle with its digital engineering workspace and component interface library.
Each military branch has unique architectures and standards, making MOSA more important than ever. Tangram Pro™ interfaces can convert data between standards with high accuracy and security, enabling interoperability in new and legacy systems.