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This report presents Version 1.0 of the Command, Control, Communications, Computers, Intel-ligence, Surveillance, and Reconnaissance (C4ISR) Architecture Framework for the develop-ment and presentation of architectures and represents a first attempt to define a coordinated approach for C4ISR architecture in support of DoD goals and objectives. The Framework provides the rules and guidance for developing and presenting architectures that ensure a com-mon denominator for understanding and comparing architectures.

1.2 OBJECTIVE AND SCOPE As implied by the report title, the scope of this initial step in framework development is di-rected at command and control, communications, computers, intelligence, surveillance, and reconnaissance (C4ISR) architectures with the focus on C4ISR support to the warfighter. The objective was to develop a common unifying approach for the military Services, unified com-mands, and Defense agencies to follow in developing their various architectures. While the specific focus has been C4ISR, the approach defined in the framework is readily extendible to other DoD functional areas such as personnel management, systems acquisition, and finance.

1.3 ORGANIZATION OF THIS DOCUMENT The remainder of this document is organized as follows:

Section 2, Background, describes the current architecture environment within the DoD that led to development of the Framework, recent architecture initiatives related to the Frame-work, and the process through which this Framework has evolved.

Section 3, Overview of the Framework, presents the analytical basis for the Framework in terms of its relationship to prior and other ongoing efforts, the relationship between military doctrine and architectures, and the linkage between architectures to warfighter missions, tasks and activities, and the information needed to support them. It describes operational, systems, and technical architectures, the relationship among them, and the types of archi-tecture information needed to establish those linkages. The Framework also describes the necessary structure for documenting architectures to facilitate their understanding, com-parison, and integration; and provides guidance on how the resulting architectural docu-mentation may be used.

Section 4, Product Descriptions, presents descriptions of the architecture products and provides guidance for their development and use.

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