With the increased emphasis on capabilities and networking, the DoD is recognizing the criticality of effective end-to-end performance of systems of systems (SoS) to meet user needs. While acquisition continues to focus on systems, systems requirements are increasingly based on assessment of gaps in user capabilities and in priority areas; there is an increasing focus on integration across systems to enable capabilities. Thus, the role of systems engineering (SE) is expanding to the engineering of SoS that provide user capabilities. This article discusses the shape of SoS in the DoD today. It outlines a recent initiative to provide guidance on the application of SE processes to the definition and evolution of SoS
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