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U.S. Department of Defense

DODAF - DOD Architecture Framework Version 2.02 - DOD Deputy Chief Information Officer

DoDAF Viewpoints and Models

Systems Viewpoint

The DoDAF-described Models within the Systems Viewpoint describes systems and interconnections providing for, or supporting, DoD functions. DoD functions include both warfighting and business functions. The Systems Models associate systems resources to the operational and capability requirements. These systems resources support the operational activities and facilitate the exchange of information. The Systems DoDAF-described Models are available for support of legacy systems. As architectures are updated, they should transition from Systems to Services and utilize the models within the Services Viewpoint.

Names of the models and their descriptions (in the table below) are provided below.

Systems Model Descriptions

Models Descriptions
SV-1 Systems Interface Description The identification of systems, system items, and their interconnections.
SV-2 Systems Resource Flow Description A description of Resource Flows exchanged between systems.
SV-3 Systems-Systems Matrix The relationships among systems in a given Architectural Description. It can be designed to show relationships of interest, (e.g., system-type interfaces, planned vs. existing interfaces).
SV-4 Systems Functionality Description The functions (activities) performed by systems and the system data flows among system functions (activities).
SV-5a Operational Activity to Systems Function Traceability Matrix A mapping of system functions (activities) back to operational activities (activities).
SV-5b Operational Activity to Systems Traceability Matrix A mapping of systems back to capabilities or operational activities (activities).
SV-6 Systems Resource Flow Matrix Provides details of system resource flow elements being exchanged between systems and the attributes of that exchange.
SV-7 Systems Measures Matrix The measures (metrics) of Systems Model elements for the appropriate timeframe(s).
SV-8 Systems Evolution Description The planned incremental steps toward migrating a suite of systems to a more efficient suite, or toward evolving a current system to a future implementation.
SV-9 Systems Technology & Skills Forecast The emerging technologies, software/hardware products, and skills that are expected to be available in a given set of time frames and that will affect future system development.
SV-10a Systems Rules Model One of three models used to describe system functionality. It identifies constraints that are imposed on systems functionality due to some aspect of system design or implementation.
SV-10b Systems State Transition Description One of three models used to describe system functionality. It identifies responses of systems to events.
SV-10c Systems Event-Trace Description One of three models used to describe system functionality. It identifies system-specific refinements of critical sequences of events described in the Operational Viewpoint.

 

Uses of System Viewpoint DoDAF-described Models. Within the development process, the DoDAF-described Models describe the design for system-based solutions to support or enable requirements created by the operational development processes (JCIDS) and Defense Acquisition System.

Mappings of the Systems Viewpoint DoDAF-described Models, to the DM2 Concepts, Associations, and Attributes are in DM2 Concepts, Associations, and Attributes Mapping to DoDAF-described Models. The DM2 Concepts, Associations, and Attributes are described in the DoDAF Meta-model Data Dictionary.