





                                                          RESTRICTED
                                      
                                              TRADE/WP.4/R.740/Add.1
                                                        29 July 1991

                                                   Original: ENGLISH






COMMITTE ON THE DEVELOPMENT OF TRADE

Working Party on Facilitation of
International Trade Procedures












       UNITED NATIONS TRADE DATA INTERCHANGE DIRECTORY (UNTDID)

                             Issue 91.2

                           September 1991






                       Note by the secretariat



               (Item 3.2.15 of the Programme of work)

(Item 4 of the provisional agenda of the Meeting of Experts on Data Elements and
Automatic Data Interchange (GE.1) - Forty-fourth session, 18-19 September 1991)


                                ****

             Draft document for Working party 4 approval

                                ****
----------------------------------------------------------------------
        UNITED NATIONS TRADE DATA INTERCHANGE DIRECTORY (UNTDID)

                             Issue 91.2

                           September 1991





   PART 5.   UNITED NATIONS DIRECTORIES FOR ELECTRONIC DATA INTERCHANGE FOR
             ADMINISTRATION, COMMERCE AND TRANSPORT


   Chapter 4 Standard data segments directory (EDSD) - FILE: EDSD.912 

                  1    Indexes

                       1.1  Listing of segments by tag
                       1.2  Listing of segments by name

                  2    Segments specifications

             Note:
             This directory contains service control segments (UN- tag) used
             for enveloping UN/EDIFACT message structures in ISO 9735 (the
             EDIFACT syntax). Version control is reflected in data element 0002
             in segment UNB and is based on changes to ISO 9735. Therefore the
             usual UN/EDIFACT directory version/release control for UN/EDIFACT
             messages (using data elements 0052 and 0054 in segments UNH and
             UNG) is NOT applicable.


   Chapter 5 Composite data elements directory (EDCD) - FILE: EDCD.912

             1    Indexes

                  1.1  Listing of composites by tag
                  1.2  Listing of composites by name

             2    Composites data elements specifications


             Note:
             This directory contains composite data elements in the "Sxxx"
             series which are used in the service enveloping segments defined
             in ISO 9735 (the EDIFACT syntax). Version control for these data
             elements is reflected in data element 0002 in segment UNB and is
             based on changes to ISO 9735. Therefore the usual UN/EDIFACT
             directory version/release control for UN/EDIFACT messages (using
             data elements 0052 and 0054 in composites S008 and S009) is NOT
             applicable.


   Chapter 6 Data elements directory (EDED) - FILE: EDED.912

             1    Indexes

                  1.1  Listing of data elements by tag
                  1.2  Listing of data elements by name

             2    Data elements specifications

             Note:
             This directory contains data elements in the "0xxx" series which
             are used in the service enveloping segments defined in ISO 9735
             (the EDIFACT syntax). Version control for these data elements is
             reflected in data element 0002 in segment UNB and is based on
             changes to ISO 9735. Therefore the usual UN/EDIFACT directory
             version/release control for UN/EDIFACT messages (using data
             elements 0052 and 0054) is NOT applicable.

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