DIRDEF Directory definition message (D01B)
This is the standard EDIFACT D01B spec, with 13 loops and 50 segment positions, as OpenEDI JSON, an ediFabric C# template and an ediFabric Native model. To change it for a trading partner, customize it in the EDI Spec Builder.
Use the DIRDEF spec in your code
ediFabric .NET
Add the C# template and its common files to your project, or reference the template NuGet package, and read DIRDEF files into TSDIRDEF objects. See ediFabric .NET.
ediFabric Native
Native supports X12 today, and EDIFACT is coming. When it's available, map version D01B to this Native model with set_map to parse DIRDEF files to JSON from Python, Java, C or C#. See ediFabric Native.
OpenEDI
Select Customize in Spec Builder to copy the spec under your own name, change it for your partner, and parse files against it in EdiNation, ediFabric Native or ediFabric Cloud. Read about OpenEDI.
Generate DIRDEF classes in Python, Java, Node.js, Go, Rust or C
The OpenEDI file describes each DIRDEF as JSON. To work with DIRDEF data as typed objects, generate classes from the OpenEDI file in your language; the root class is TSDIRDEF. The classes keep the loops, segments, lengths and code lists, but not the EDI data formats. Read more in Generate a class from OpenEDI.
Python: datamodel-code-generator. Node.js: openapi-typescript. Java, Go, Rust and C: OpenAPI Generator.
DIRDEF structure
Loops and segments of the standard DIRDEF, with their usage and maximum repeats.
| ID | Name | Usage | Max use |
|---|---|---|---|
| UNH | Message Header | Optional | 1 |
| BGM | BEGINNING OF MESSAGE | Mandatory | 1 |
| DII | DIRECTORY IDENTIFICATION | Mandatory | 1 |
| DTM | DATE/TIME/PERIOD | Optional | 9 |
| FTX | FREE TEXT | Optional | 9 |
| Loop NAD | NAME AND ADDRESS | Optional | 9 |
| NAD | NAME AND ADDRESS | Mandatory | 1 |
| Loop CTA | CONTACT INFORMATION | Optional | 9 |
| CTA | CONTACT INFORMATION | Mandatory | 1 |
| COM | COMMUNICATION CONTACT | Optional | 9 |
| Loop MSG | MESSAGE TYPE IDENTIFICATION | Optional | 9999 |
| MSG | MESSAGE TYPE IDENTIFICATION | Mandatory | 1 |
| ATT | ATTRIBUTE | Optional | 99 |
| FTX | FREE TEXT | Optional | 999 |
| DTM | DATE/TIME/PERIOD | Mandatory | 1 |
| Loop SGU | SEGMENT USAGE DETAILS | Optional | 999 |
| SGU | SEGMENT USAGE DETAILS | Mandatory | 1 |
| ATT | ATTRIBUTE | Optional | 9 |
| FTX | FREE TEXT | Optional | 99 |
| Loop GRU | SEGMENT GROUP USAGE DETAILS | Optional | 1 |
| GRU | SEGMENT GROUP USAGE DETAILS | Mandatory | 1 |
| ATT | ATTRIBUTE | Optional | 9 |
| FTX | FREE TEXT | Optional | 99 |
| Loop FNT | FOOTNOTE | Optional | 99 |
| FNT | FOOTNOTE | Mandatory | 1 |
| REL | RELATIONSHIP | Optional | 1 |
| GIR | RELATED IDENTIFICATION NUMBERS | Optional | 9 |
| ATT | ATTRIBUTE | Optional | 9 |
| FTX | FREE TEXT | Optional | 9 |
| Loop SEG | SEGMENT IDENTIFICATION | Optional | 9999 |
| SEG | SEGMENT IDENTIFICATION | Mandatory | 1 |
| ATT | ATTRIBUTE | Optional | 9 |
| FTX | FREE TEXT | Optional | 9 |
| ELU | DATA ELEMENT USAGE DETAILS | Optional | 99 |
| Loop FNT | FOOTNOTE | Optional | 99 |
| FNT | FOOTNOTE | Mandatory | 1 |
| REL | RELATIONSHIP | Optional | 1 |
| GIR | RELATED IDENTIFICATION NUMBERS | Optional | 9 |
| ATT | ATTRIBUTE | Optional | 9 |
| FTX | FREE TEXT | Optional | 9 |
| Loop CMP | COMPOSITE DATA ELEMENT IDENTIFICATION | Optional | 9999 |
| CMP | COMPOSITE DATA ELEMENT IDENTIFICATION | Mandatory | 1 |
| ATT | ATTRIBUTE | Optional | 9 |
| FTX | FREE TEXT | Optional | 9 |
| ELU | DATA ELEMENT USAGE DETAILS | Optional | 99 |
| Loop FNT | FOOTNOTE | Optional | 99 |
| FNT | FOOTNOTE | Mandatory | 1 |
| REL | RELATIONSHIP | Optional | 1 |
| GIR | RELATED IDENTIFICATION NUMBERS | Optional | 9 |
| ATT | ATTRIBUTE | Optional | 9 |
| FTX | FREE TEXT | Optional | 9 |
| Loop ELM | SIMPLE DATA ELEMENT DETAILS | Optional | 9999 |
| ELM | SIMPLE DATA ELEMENT DETAILS | Mandatory | 1 |
| ATT | ATTRIBUTE | Optional | 9 |
| FTX | FREE TEXT | Optional | 9 |
| Loop CDS | CODE SET IDENTIFICATION | Optional | 9999 |
| CDS | CODE SET IDENTIFICATION | Mandatory | 1 |
| FTX | FREE TEXT | Optional | 9 |
| Loop CDV | CODE VALUE DEFINITION | Optional | 9999 |
| CDV | CODE VALUE DEFINITION | Mandatory | 1 |
| ATT | ATTRIBUTE | Optional | 9 |
| FTX | FREE TEXT | Optional | 9 |
| UNT | Message Trailer | Optional | 1 |