Mr. David N. Nicholson Profile

David N. Nicholson

Technical Advisor at MITRE Corp

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Proceedings Article | 4 August 2000 Paper

Executable architecture for the first digitized division

Paul Barr, Alan Bernstein, Michael Hamrick, David Nicholson, Thomas Pawlowski, Steven Ring

Proceedings Volume 4037, (2000) https://doi.org/10.1117/12.395030

KEYWORDS: C4ISR, Systems modeling, Process modeling, Computer architecture, Telecommunications, Visual process modeling, Solid modeling, Defense and security, Data processing, Visualization

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The C4ISR Architecture Framework, Version 2.0, provides the basis for all Department of Defense commands, services and agencies to describe their Information System architectures. The majority of the C4ISR products currently being developed provide static information for operational, system, and technical views of an information system. The C4ISR Framework also provides for dynamic or behavioral information in the form of rules models, state transition descriptions, and event/trace descriptions. However, because of a lack of tools and process to develop this dynamic information, these products are rarely developed. This paper presents the results of an ongoing effort, in support of the Army's Digitization architecture development, to remedy this situation. The effort is focused on developing a process that builds on the Army's First Digitized Division (FDD) Operational Architecture (OA) activity models. The process includes development of an executable OA based on mission threads captured in a commercial business-process modeling tool, Professional Bonapart. The mission threads are automatically converted into use-cases for importation into RoseRT. These use-cases provide the basis for developing the System Architecture (SA) in RoseRT, which simulates the architecture and automatically generates event/trace descriptions as UML sequence diagrams. Execution of the OA and SA models results in a set of operational and performance metrics that can be used to validate the architectures as well as producing graphical representations of C4ISR behavioral products. This paper will present the results of applying the process to the development of executable architectures to elements of the Army's First Digitized Division.

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