The set of information capabilities, and associated processes for collecting, processing, storing, disseminating, and managing information on-demand to warfighters, policy makers, and support personnel, whether interconnected or stand- alone, including owned and leased communications and computing systems and services, software (including applications), data, security services, other associated services, and national security systems.
Sources:
CNSSI 4009-2015
from
DoD Dictionary of Military and Associated Terms, JP 3-12