0. INTRODUCTION
1. SCOPE
   1. Functional definition
   2. Field of application
   3. Principles
2. REFERENCES
3. TERMS AND DEFINITIONS
   1. Standard terms and definitions
4. MESSAGE DEFINITION
   1. Data segment clarification
   2. Data segment index (alphabetical sequence)
   3. Message structure
      1. Segment table

This specification provides the definition of the Directory definition message (DIRDEF) to be used in Electronic Data Interchange (EDI) between trading partners involved in administration, commerce and transport.

This Directory definition message (DIRDEF) permits the transfer of the contents of a UN/EDIFACT or American National Standards Institute (ANSI) Accredited Standards Committee (ASC) X12 Directory set or parts thereof.

The Directory definition message may be used for both national and international applications. It is based on universal practice related to administration, commerce and transport, and is not dependent on the type of business or industry.

The Message allows the transmission of a UN/EDIFACT or X12 Directory set, or parts thereof. A UN/EDIFACT or ANSI ASC X12 Directory Set comprises:

-Message type or Transaction Set directory -Segment directory -Composite data element directory -Simple data element directory -Code list directory

One occurrence of the message can contain only one version of a UN/EDIFACT or ANSI ASC X12 Directory set, or parts thereof.

See UNTDID, Part 4, Chapter 2.6 UN/ECE UNSM - General Introduction, Section 1.

See UNTDID, Part 4, Chapter 2.6 UN/ECE UNSM - General Introduction, Section 2.

This section should be read in conjunction with the Segment Table which indicates mandatory, conditional and repeating requirements.

0010 UNH, Message header

A service segment starting and uniquely identifying a message. The message type code for the Directory definition message is DIRDEF.

Note: Directory definition messages conforming to this document must contain the following data in segment UNH, composite S009:

0020 BGM, Beginning of message

A segment to indicate the beginning of the message and to transmit function, type and number of the message.

0030 DII, Directory identification

A segment specifying the identity of the directory set and giving its language and maintenance operation.

0040 DTM, Date/time/period

A segment specifying dates related to the directory set, such as date of approval, date of submission or WP.4 acceptance date.

0050 FTX, Free text

A segment providing free text information related to the directory set.

0060 Segment Group 1: NAD-SG2

A group of segments identifying the parties involved in the transaction with associated information.

0070 NAD, Name and address

A segment identifying the parties involved in the transaction, e.g. originator, requestor or secretariat.

0080 Segment Group 2: CTA-COM

A group of segments identifying a person or a department and identifying communication type(s) and number(s).

0090 CTA, Contact information

A segment identifying a person or a department for the party specified in the leading NAD segment to whom the communication should be directed.

0100 COM, Communication contact

A segment identifying communication type(s) and number(s) of person(s) or department(s) specified in the associated CTA segment.

0110 Segment Group 3: MSG-FTX-DTM-SG4

A group of segments providing a message type directory.

0120 MSG, Message type identification

A segment identifying a message type to be specified.

0130 FTX, Free text

A segment providing textual information related to the message type, namely: message type name, Introduction, Scope, Functional definition, Principles, References and Terms and definitions.

0140 DTM, Date/time/period

This segment is used to indicate the release date of a message, as indicated on the cover page of the boilerplate.

0150 Segment Group 4: SGU-FTX-SG5

A group of segments specifying a message type structure and its related functional definition.

0160 SGU, Segment usage details

A segment specifying the usage of a segment in a message type structure.

0170 FTX, Free text

A segment providing textual information about segment usage. This information comprises part of the 'Data segment clarification' section.

0180 Segment Group 5: GRU-FTX

A group of segments identifying a segment group and providing details about segment group usage.

0190 GRU, Segment group usage details

A segment specifying the usage of a segment group in a message type structure.

0200 FTX, Free text

A segment providing the textual information about segment group usage. This information comprises part of the 'Data Segment Clarification' section.

0210 Segment Group 6: SEG-FTX-ELU-REL

A group of segments providing a segment directory.

0220 SEG, Segment identification

A segment identifying a segment type and specifying its class and maintenance operation.

0230 FTX, Free text

A segment specifying the name and functional definition of a segment type.

0240 ELU, Data element usage details

A segment specifying the contents of data elements in a segment type.

0250 REL, Relationship

To identify the direct relationship between the data and/or information contained in one segment and the data and/or information contained in one or more other segments.

0260 Segment Group 7: CMP-FTX-ELU

A group of segments providing a composite data element directory.

0270 CMP, Composite data element identification

A segment identifying a composite data element and specifying its class and maintenance operation.

0280 FTX, Free text

A segment specifying the name and functional definition of a composite data element type.

0290 ELU, Data element usage details

A segment specifying component data elements in a composite data element and its related information.

0300 Segment Group 8: ELM-FTX

A group of segments providing a data element directory.

0310 ELM, Simple data element details

A segment identifying a simple data element and giving related information.

0320 FTX, Free text

A segment specifying the name and functional definition of a simple data element.

0330 Segment Group 9: CDS-FTX-SG10

A group of segments providing a code list directory.

0340 CDS, Code set identification

A segment specifying a code set. In DIRDEF data element 9434 shall not be used.

0350 FTX, Free text

A segment providing textual information related to the code list.

0360 Segment Group 10: CDV-FTX

A group of segments specifying a code value and its functional definition.

0370 CDV, Code value definition

A segment specifying a code value.

0380 FTX, Free text

A segment specifying the name and functional definition of a code value.

0390 UNT, Message trailer

A service segment ending a message, giving the total number of segments in the message and the control reference number of the message.