RFC 3085 (rfc3085) - Page 2 of 6

URN Namespace for NewsML Resources

RFC 3085           URN Namespace for NewsML Resources         March 2001


   Registration Information:

      Registration Version Number: 1
      Registration Date: 2000-11-07

   Declared registrant of the namespace:

      David Allen
      
      IPTC
      Royal Albert House
      Sheet Street
      Windsor
      SL4 1BE

   Declaration of structure:

      The identifier has the following ABNF[6] specification:

      NSS = ProviderId ":" DateId ":" NewsItemId ":" RevisionId Update
      ProviderId = string
      DateId = date
      NewsItemId = string
      RevisionId = posint
      Update = 0*1( "A" / "U" )
      date = century year month day
      century = ( "0" posdig ) / ( posdig DIGIT )
      year = 1*2DIGIT
      month = ( 0 posdig ) / ( "1" ( "0" "1" "2" ) )
      day = ( 0 posdig ) / ( ( "1" / "2" ) DIGIT ) / "30" / "31"
      string = 1*char
      char = ALPHA / DIGIT / symbol / escape
      symbol = "(" / ")" / "+" / "," / "-" / "." / "=" / "@" / ";" /
        "$" / "_" / "!" / "*" / "'"
      escape = "%" HEXDIG HEXDIG
      posint = posdig *DIGIT
      posdig = "1" / "2" / "3" / "4" / "5" / "6" / "7" / "8" / "9"

      The ProviderId must be an Internet domain name, and must be owned
         by the organisation creating the NewsML resource and allocating
         the URN to it, at the date identified by the DateId.
      DateId is a date in ISO 8601 Basic Format (CCYYMMDD), and must
         correspond to a date at which the organisation allocating the
         URN owned the domain name specified in the ProviderId.
      The NewsItemId must be unique among all NewsItems emanating from
         the same provider and having the same DateId.





Coates, et al.               Informational