Home' RTCA Documents for Review : DO-230H FRAC Contents Appendix B
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COP – Common Operating Picture: A centralized integrated view of relevant operation information as may
be used to facilitate collaborative planning and response to assist all affected parties achieve situational
COOP – Continuity of Operations: Formalized under National Security Presidential Director-51 (NSPD-
51) / Homeland Security Presidential Directive-20 (HSPD-20), the National Continuity Policy specifies
federal government continuation via agency preparedness under the broadest range of circumstances. The
term has been colloquially used since WWII within federal, state and local levels and is normally comprised
of mitigation of risks and vulnerabilities, business continuity, disaster recovery and other measures to
ensure resiliency and preserve ongoing operations.
CP – Command Post
CPF – Card Production Facility
Certification - the comprehensive assessment that a system’s or process’s technical / non-technical features
and safeguards meet a set of specified requirements for its use and environment.
CRL – Certificate Revocation List
CS mount – Type of camera mount which measures 12.5mm from the camera's CCD to the rear mounting
surface of the lens. CS mount lenses can be used with C mount cameras by adding a 5mm spacer.
Cyber – of, relating to, or involved with computers, IT, etc.
Cybersecurity – the process of protecting information by preventing, directing and responding to attacks
on cyber systems and / or infrastructure.
DAS – Direct-attached storage, a digital storage system directly attached to a server or workstation, without
a storage network in between. The protocols available for use for DAS connections are ATA, SATA,
eSATA, SCSI, SAS, and Fibre Channel. DAS is distinguished non-networked storage from SAN and
Data Encryption Standard – An encryption standard (published in 1977) developed by IBM and then
tested and adopted by the National Bureau of Standards for use in both government and private sectors.
Data Rate – Data transfer speed – or bit rate - as in bytes per second.
dB – Decibel, a logarithmic unit that indicates the ratio of a physical quantity (usually power or intensity)
relative to a specified or implied reference level. A ratio in decibels is 10 times the logarithm to base 10 of
the ratio of two power quantities.
De-duplication – The process of using biometrics to determine if an individual was previously enrolled in
a database by performing a biometric search against all prior records regardless of name.
DES – An encryption standard to assist each system on a network is secured to the greatest possible degree;
frequently used in conjunction with firewalls.
DHS – Department of Homeland Security; a US cabinet-level government body with the primary
responsibilities of protecting United States of America, its territories and protectorates from and providing
response to terrorist attacks, man-made accidents, and natural disasters. The Department of Homeland
Security, and not the US Department of the Interior, is the equivalent to the Interior Ministries of other
DHCP – Dynamic Host Configuration Protocol
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