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Subject: Open Systems Architectures

A Naval Perspective on Open-Systems Architecture

A Naval Perspective on Open-Systems Architecture

• SEI Blog
Douglas C. Schmidt

This blog post was co-authored by Carol Sledge. To deliver enhanced, integrated warfighting capability at lower cost, the DoD must move away from stove-piped solutions and embrace open systems architecture (OSA) approaches that integrate business and technical practices to create systems with interoperable and reusable components. In November, the SEI launched a series of blog posts that highlight the perspectives of DoD stakeholders--including contractor and government employees--on OSA-based approaches and how they can best be...

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A Discussion on Open-Systems Architecture

A Discussion on Open-Systems Architecture

• SEI Blog
Carol Sledge

At an open architecture summit in November 2014, Katrina G. McFarland, assistant secretary of defense for acquisition said that 75 percent of all Defense Department acquisition strategies implement open systems architecture across all services and agencies. "This department is seriously engaged in trying to understand how to help our program managers and our department and our industry look at open architecture and its benefits," McFarland said, "and understand truly what our objectives are related to...

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OSA: 4 Best Practices for Open Software Ecosystems

OSA: 4 Best Practices for Open Software Ecosystems

• SEI Blog
Bryce Meyer

Many systems and platforms, from unmanned aerial vehicles to minivans and smartphones, are realizing the promise of Open Systems Architecture (OSA). A core tenet of OSA is the broad availability of standards and designs, the sharing of information between developers, and in some cases downloadable tool kits. In return for openness, a broader community of potential developers and applications emerges, which in turn increases adoption and use. Consequently, there is a trade-off. Openness is a...

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Open System Architectures: When and Where to be Closed

Open System Architectures: When and Where to be Closed

• SEI Blog
Donald Firesmith

By Donald Firesmith Principal Engineer Software Solutions Division Due to advances in hardware and software technologies, Department of Defense (DoD) systems today are highly capable and complex. However, they also face increasing scale, computation, and security challenges. Compounding these challenges, DoD systems were historically designed using stove-piped architectures that lock the Government into a small number of system integrators, each devising proprietary point solutions that are expensive to develop and sustain over the lifecycle. Although...

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Open Architectures in the Defense Intelligence Community

Open Architectures in the Defense Intelligence Community

• SEI Blog
Eric Werner

In an era of sequestration and austerity, the federal government is seeking software reuse strategies that will allow them to move away from stove-piped development toward open, reusable architectures. The government is also motivated to explore reusable architectures for purposes beyond fiscal constraints: to leverage existing technology, curtail wasted effort, and increase capabilities rather than reinventing them. An open architecture in a software system adopts open standards that support a modular, loosely coupled, and highly...

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The Importance of Automated Testing in Open Systems Architecture Initiatives

The Importance of Automated Testing in Open Systems Architecture Initiatives

• SEI Blog
Douglas C. Schmidt

To view a video of the introduction, please click here.The Better Buying Power 2.0 initiative is a concerted effort by the United States Department of Defense to achieve greater efficiencies in the development, sustainment, and recompetition of major defense acquisition programs through cost control, elimination of unproductive processes and bureaucracy, and promotion of open competition. This SEI blog posting describes how the Navy is operationalizing Better Buying Power in the context of their Open Systems...

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