DED - Date Environment Designer

DEDS - Dispute Event Decision System

DEF - Defaults

DEF - Definitions

DEF - Desktop Functional Equivalent

DEI - Data Extraction Interface

DEIM - Divide Et Impera Method

DEK - Data Encryption Key

DEL - Delete

DELSTR - Delete String

DEM - Demonstration

DEM - Digital Elevation Model

DEN - Document Enabled Networking

DEO - Dialogue Element Description

DER - Distinguished Encoding Rules

DES - Description

DES - Data Entry Sheet

DES - Data Encryption Standard

DET - Device Execute Trigger

DF - Data Field

DF - Destination Field

DF - Device Flag

DF - Double Flag

DF - Direction Flag

DFA - Deterministic Finite Automation