RFC 2913 (rfc2913) - Page 1 of 9

MIME Content Types in Media Feature Expressions

Network Working Group                                           G. Klyne
Request for Comments: 2913                          Content Technologies
Category: Standards Track                                 September 2000


            MIME Content Types in Media Feature Expressions

Status of this Memo

   This document specifies an Internet standards track protocol for the
   Internet community, and requests discussion and suggestions for
   improvements.  Please refer to the current edition of the "Internet
   Official Protocol Standards" (STD 1) for the standardization state
   and status of this protocol.  Distribution of this memo is unlimited.

Copyright Notice

   Copyright (C) The Internet Society (2000).  All Rights Reserved.

Abstract

   In "A Syntax for Describing Media Feature Sets", an expression format
   is presented for describing media feature capabilities using simple
   media feature tags.

   This memo defines a media feature tag whose value is a Multipurpose
   Internet Mail Extensions (MIME) content type.  This allows the
   construction of feature expressions that take account of the MIME
   content type of the corresponding data.

Table of Contents

   1. Introduction .................................................. 2
      1.1 Terminology and document conventions ...................... 2
   2. Motivation and goals .......................................... 3
   3. MIME content type feature tag ................................. 3
   4. Examples ...................................................... 4
      4.1 Simple text ............................................... 4
      4.2 Fax image ................................................. 4
      4.3 Voice message ............................................. 4
      4.4 Web browser capabilities .................................. 5
   5. IANA Considerations ........................................... 5
   6. Security Considerations ....................................... 5
   7. Acknowledgements .............................................. 5
   8. References .................................................... 6
   9. Author's Address .............................................. 6
   Appendix A: 'Type' feature tag registration ...................... 7
   Full Copyright Statement ......................................... 9



Klyne                       Standards Track