Glossary, Acronyms, and Abbreviations - IIUSA

DFT - distributed function terminal
DGIAP - Defense General Intelligence and Applications Program
DGIS - defense gateway information system
DGIS - Direct Graphics Interface Standard
DGM - Digital Group Multiplexer
DGP - (Datagram Packet) - In internet communication using routers,
a DGP is independently routed from a node to its destination.
Applications for DGPs include node-to-network control point
communications, address packets that set up a call, and remote
messages sent between the command processor and remote
database task. DGPs are divided into distinct classes, point-topoint
packets, and message packets.
DGPS - differential global positioning system
DGS - deployable ground station (USAF)
DGS - display group status
DGSA - DOD goal security architecture
DHCF - distributed host command facility
DHCP - decentralized hospital computer program (VA)
DHCP - Dynamic Host Configuration Protocol
DHPCMP - Defense High Performance Computing Modernization
Plan
DHS - Defense HUMINY Service (DIA)
DHS - digital hash standard
DIA - Defense Intelligence Agency
DIAC - Defense Intelligence Analysis Center
Dial-Up - Line - A communications circuit that is established by a
switched circuit connection using the telephone dial network.
DIAM - Defense Intelligence Agency Manual
DIANA - descriptive intermediate attributed notation Ada
DIAOLS - DIA online system
DIAP - Defense Information Assurance Program
DIB - device independent bitmap
DIB - directory information base
DIBTS - Digital In-Band Trunk Signaling
DICP - Defense Intelligence Counterdrug Program
DID - data item description
DID - Defense-in-Depth
DID - Direct Inward Dialing. The ability for an outside caller to dial to
a PBX extension without going through an attendant or autoattendant.
DID - Extension or DID Station - A specific phone within a PBX which
can be called from the public telephone network without going
through an attendant or auto-attendant.
DID - Number - A phone number used to route calls from the
telephone network to a specific phone in a PBX (the DID
extension). DID requires special DID trunks or ISDN PRI "twoway
DID" trunks. Blocks of DID numbers (typically 10 or 20) are
purchased from the LEC or CLEC for use on the PBX. The
number of DID numbers usually substantially exceeds the number
of trunks in the system.
DID - Trunk - A Direct Inward Dialing Trunk. A trunk (channel) which
can only receive calls. A group of telephone numbers (DID
numbers) are associated with a given trunk group, however there
is no one-to-one correspondence between the individual channels
and these numbers. The PBX uses the DID number given it by
the phone company to route the channel to the correct DID
extension within the PBX extension. This allows some or all PBX
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stations to receive calls directly without going through an
attendant (or auto attendant) Note that there are almost always
more DID numbers than there are DID trunks. See DID Number
and DIDExtension.
DIDHS - deployable intelligence data handling system (Army)
DIDS - defense integrated data system
DIDS - distributed intrusions detection system
DIEB - Defense Intelligence Executive Board
DIF - data interchange format
DIFAX - digital facsimile
DIG - digital
DIGEST - digital geographic information exchange standard
Digital - Error - A single-digit inconsistency between the transmitted
and received signals.
Digital - Signal - A discrete or continuous signal; one whose various
states are identified with discrete levels or values.
Digroup - A group of 24 PCM (Pulse Code Modulation)-encoded, 64
kbps voice channels, or 24 DS0s.
DII - Defense Information Infrastructure
DII - COE DII Common Operating Environment
DIIP - direct interrupt identification port
DIL - Digital Integrated (Integration) Laboratory
DIL - display interswitch link
DIL/T - Digital Integration Laboratory/Test Bed
DIM - data input message
DIMMS - dual inline memory modules
DIN - defense intelligence network
DINAH - desktop interface to AUTODIN host
DINL - INITIALIZE DISK
DINSUM - Defense Intelligence Notice Summary
DIO - data input-output
DIO - defensive information operations
DIO - Division Information Officer
DIOE - Dual Input/Output Expander
DIP - Defense Imagery Program
DIP - digital imaging processing
DIP - (Dual in-line Package) - A set of two or more binary switches
mounted on a printed circuit assembly.
dir - directory
DIRCM - directed infrared countermeasures
Direct - Inward Dialing - See DID
DIRNSA - Director, NSA
DIS - defense information system
DIS - Defense Investigative Service (Now DSS)
DIS - distributed information system
DIS - draft international standard
DIS - disable
DISA - Defense Information Systems Agency (formerly DCA)
DISAC - DISA Circular
DISAI - DISA Instruction