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Data Base:
A collection of logically related records or files.
Data Compression:
An automated process in which data is compressed and wrapped by
removing trailing blanks and spaces from segments, groups, and/or
transactions. Data compression reduces data field information to its
minimum (for cost effectiveness).
Data Decompression:
An automated process to decompress or"unwrap" data received by
re-inserting trailing blanks and spaces.
Data Dictionary:
A listing of all data elements, and sometimes the segments and
messages, unique to the specific system of EDI standards being used.
Data Element Separator:
A syntax character used to separate data elements within a segment.
Also referred to as a "delimiter".
Data Element:
The smallest named item in a segment that can convey data. For
example, "Bill To City" is one data element within a segment.
Data Log:
Record of EDI transmissions, maintained by either originator or
receiver, or a third party such as a VAN.
Dedicated Line:
A communication link permanently established between two locations.
May be either a privately installed cable or a line leased from the
phone company.
DES (Data Encryption Standard):
A Federal Information Processing Standard (FIPS) for data encryption,
using a symmetric security algorithm.
Dial-up Line:
Ordinary phone line. Part of the switched network used by the phone
company to handle all types of calls-not just data communications
transmissions. Contrast with leased line.
Dial-up:
Describing the process of, or the equipment or facilities involved in,
establishing a temporary connection via the switched telephone
network.
Digital Signatures:
Electroninc alphanumeric codes incorporated into messages to identify
the originator.
Data Interchange Standards Association:
The not-for-profit membership organization that provides secretariat
service to ASC X12.
DISA:
The acronym for Data Interchange Standards Association.
DOCUMENT:
As used in EDI, one complete piece of data. Forexample, one Purchase
Order, or one Invoice. Also known as a "Message".
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