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    Glossary
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system interconnection

Definitions:

  The direct connection of two or more information systems for the purpose of sharing data and other information resources.
Sources:
CNSSI 4009-2015

  A direct connection between two or more systems in different authorization boundaries for the purpose of exchanging information and/or allowing access to information, information services, and resources.
Sources:
NIST SP 800-47 Rev. 1