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A system designed or adapted to interact with an anticipated operational environment to achieve one or more intended purposes while complying with applicable constraints.
NIST SP 800-160v1r1
Systems Engineering and System Definitions
Comments about specific definitions should be sent to the authors of the linked Source publication. For NIST publications, an email is usually found within the document.
Comments about the glossary's presentation and functionality should be sent to email@example.com.
See NISTIR 7298 Rev. 3 for additional details.