Article
Article
Functional analysis and modeling (engineering)
Article By:
Buede, Dennis M. Department of Systems Engineering and Operations Research, Center of Excellence in Command, Control, Communications and Intelligence, George Mason University, Fairfax, Virginia.
Last reviewed:January 2020
DOI:https://doi.org/10.1036/1097-8542.757571
The discipline that addresses the activities that a system, software, or an organization must perform to achieve its desired outputs; that is, what transformations are necessary to turn the available inputs into the desired outputs. Additional considerations include the flow of data or items between functions, the processing instructions that are available to guide the transformations, and the control logic that dictates the activation and termination of functions. Functional analysis diagrams have been developed to capture some or all of these concepts.
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