Modular Open Systems Approach

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A MOSA, formerly known as Open Systems Architecture or Open Systems Approach, can be defined as a technical and business strategy for designing an affordable and adaptable system. A MOSA is the DoD preferred method for implementation of open systems, and it is required by US law. Title 10 USC 2446a.(b), states all Major Defense Acquisition Programs (MDAP) are to be designed and developed using a MOSA that:

  • Employs a modular design that uses major system interfaces between a major system platform and a major system component, between major system components, or between major system platforms;

  • Is subjected to verification to ensure major system interfaces comply with, if available and suitable, widely supported and consensus-based standards; and

  • Uses a system architecture that allows severable major system components at the appropriate level to be incrementally added, removed, or replaced throughout the life cycle of a major system platform to afford opportunities for enhanced competition and innovation.

5 PILLARS OF MOSA

MOSA integrates technical requirements with contracting mechanisms and legal considerations to support a more rapid evolution of capabilities and technologies.

Enabling Environment
Establish upportive reequirments and strategies
Modular Design
Developing architectures based on modular desing tenets
Designate Key Interfaces
Name interfaces impacting performance, cost and support
Use Open Standards
Using consensus based and widely supported standards
Certify Conformance
Assuring openness to relize MOSA benefits

Trusted, Proven Solutions Based on MOSA Open Standards

With a foundation of extensive experience and active involvement in shaping open standards, Graves-Technologies creates solutions that deliver the advantages of a Modular Open Systems Approach (MOSA) architecture across ground, airborne, and naval platforms in use.

HOST Standards
standards framework that applies open architectures to high-performance embedded computing.
FACE Standards
The FACE Technical Standard defines the requirements for architectural segments and key interfaces that link the segments together.
SOSA Standards
SOSA focuses on creating common standards and architectures for sensor systems to improve compatibility and interchangeability.
OMS Standards
OMS Compliance is the creation of a subset of a weapon system architecture designed with open interfaces and data exchanges in accordance with the OMS.