rfc1685.txt

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    Physical Delivery Country Name         PD-country        PD-C

    Table F.3. Other Attributes

    X.121 Network Address                  X.121             X.121
    E.163/E.164 Network Address            ISDN              ISDN
    PSAP Network Address                   PSAP              PSAP
    User Agent Numeric ID                  N-ID              N-ID
    Terminal Identifier                    T-ID              T-ID
    Terminal Type                          T-TY              T-TY
    Domain Defined Attribute               DDA:<type>
    DDA:<type>

    where the notation <type> identifies the type of domain defined
    attribute.

   F.3.2.2 Terminal Type

      There are currently six terminal types, and if international
      consistency is required the following specific abbreviations
      should be used to represent the values for these types: tlx, ttx,
      g3fax, g4fax, ia5 and vtx.





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   F.3.2.3 Domain Defined Attribute

      The label for a DDA consists of "DDA:" followed by the DDA type.
      If an address includes more than one DDA of the same type, it is
      assumed that the DDAs are intended to be processed in the sequence
      in which they are represented.

      EXAMPLE - DDA:RFC-822=fred(a)widget.co.uk; O=gateway; P=abc; C=gb

      If the <type> of a DDA type includes the character "=", it is
      represented by "==".

   F.3.3 Self-explanatory format

      The self-explanatory format may be used when space is available.
      It consists of a list of the attribute types, either in full or
      abbreviated. The attribute types or abbreviations may be in any
      language, but each attribute type or abbreviation in Table F.1 is
      followed by the specified label. If English language abbreviations
      are used, they should be those given in Tables F.1, F.2 and F.3.

      If an address is entirely composed of attributes contained in
      Table F.1, it is recommended that the sequence of attributes in
      the address is that given in Table F.1. If this sequence is
      incompatible with normal cultural conventions, an alternative
      sequence may be adopted for representations of addresses which are
      primarily intended for use within that culture.

    EXAMPLE 1 - Using attribute types in the Norwegian language

    Fornavn (G)                            Per
    Etternavn (S)                          Hansen
    Organisasjon (O)                       Teledir
    Organisasjonsenhet (OU1)               Forskning
    Privat domene (P)                      Tele
    Administrasjonsdomene (A)              Telemax
    Land (C)                               NO














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    EXAMPLE 2 - Using attribute types and abbreviations in the English
                language

    Given name (G)                         John
    Surname (S)                            Smith
    Organization (O)                       A Bank Ltd
    Org. Unit (OU1)                        IT Dept
    Org. Unit (OU2)                        MSG Group
    PRMD (P)                               ABL
    ADMD (A)                               Snomail
    Country (C)                            AQ

   F.4 User interface

      This clause specifies the characteristics of a user interface
      which are necessary to enable a user to input O/R addresses
      represented in either of the formats specified in clause F.3.

      It is necessary for the user interface to be able to accept any
      valid combination of attributes from Tables F.1, F.2 and F.3.

      If the user interface lists the attributes given in Table F.1, it
      is recommended that either the sequence used in Table F.1 should
      be used, or if this sequence is incompatible with normal cultural
      conventions, the alternative sequence adopted within a particular
      culture.

      If the user supplies a value for the PRMD attribute but omits the
      ADMD attribute, or omits the value for the ADMD attribute, the
      ADMD value to be used is a single space.

      Where an interface accepts an O/R address as a single string
      (e.g., in a command line interface), it is necessary to accept any
      valid labelled format address allowing the user to enter either
      delimiter. The interface should not require the attributes to be
      specified in any particular order. The interface should accept
      labels in upper or lower case.

      NOTE - For some existing command line interfaces it may be
      necessary to enclose the whole labelled format address in quotes.

      If any other type of interface is provided (e.g., a prompting or
      form-fill interface), it is necessary to provide a means which
      enables the user to easily associate the identity of each
      attribute with the labels specified in Tables F.1, F.2 and F.3.






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   NOTES

      1.   One way to associate the identity of each attribute with the
           labels is to follow the attribute type (or abbreviation) for
           each attribute with the label in brackets, for example:

           Given name (G)
           Initials (I)
           Surname (S)
           Generation Qualifier (Q)
           Common Name (CN)
           Organization (O)
           Organizational Unit 1 (OU1)
           Organizational Unit 2 (OU2)
           Organizational Unit 3 (OU3)
           Organizational Unit 4 (OU4)
           Private Management Domain Name (P)
           Administration Management Domain Name (A)
           Country (C)

      2.   Many users may have difficulty copying an address presented
           as a table (either in labelled or self-explanatory format)
           into a command line interface which uses delimiters.

      3.   For form-fill style interfaces, user performance will be
           optimised when the interface most closely resembles the
           format of the supplied address with the same sequence of
           attributes using the same attribute types or labels.

    Examples of application

      1.   The Norwegian user of a command line interface receives a
           business card containing the following O/R address:

           G=john; S=smith; O=a bank ltd; P=abl; A=snomail; C=aq

           The command line interface enables the user to type in the
           address exactly as presented on the card.

      2.   The Norwegian user of a form fill interface receives the
           same business card. The form on the screen includes the
           following field names:









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           Fornavn (G)
           Etternavn (S)
           Organisasjon (O)
           Privat domene (P)
           Administrasjonsdomene (A)
           Land (C)

           The user is able to fill in the form by associating the
           single letter labels on the business card with the same
           labels in brackets after the Norwegian names of the
           attributes on the screen. (For form fill input the
           delimiters are not used.)

      3.   The English speaking user of a command line interface
           receives a document quoting the following O/R address:

           Fornavn (G)               Per
           Etternavn (S)             Hansen
           Organisasjon (O)          Teledir
           Organisasjonsenhet (OU1)  Forskning
           Privat domene (P)         Tele
           Administrasjonsdomene (A) Telemax
           Land (C)                  NO

           The user knows how to transform the address from self-
           explanatory to labelled format. The user can choose to enter
           the address with either delimiter, e.g.,:

          g=per;s=hansen;o=teledir;ou1=forskning;p=tele;a=telemax;c=no

           or:

         /g=per/s=hansen/o=teledir/ou1=forskning/p=tele/a=telemax/c=no

4. References


   [1]  F.401 - CCITT Message Handling Services - Operations
        and Definitions of Service - Naming and Addressing
        for Public Message Handling Services, Annex B
        (08/92).

        Available (at the time of writing) as the GOPHER URL:

        gopher://info.itu.ch/9/.1/ITUdoc/.dirtree/.1/.itu-
        t/.rec/.f/.23068/.7724.zip





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RFC 1685                Writing X.400 O/R Names              August 1994


5. Security Considerations

   Security issues are not discussed in this memo.

6. Author's Address

   Harald Tveit Alvestrand
   UNINETT A/S
   P.O.Box 6883
   ELGESETER
   N-7002 TRONDHEIM
   NORWAY

   RFC822: [e-mail]
   X.400:  C=no; ADMD=; PRMD=uninett; O=uninett; S=alvestrand;
   G=harald



































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