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+Network Working Group                                     R. Moulton
+Request for Comments: 2503                            United Kingdom
+Category: Informational                                 M. Needleman
+                                       Data Research Associates, Inc
+                                                       February 1999
+
+
+              MIME Types for Use with the ISO ILL Protocol
+
+Status of this Memo
+
+   This memo provides information for the Internet community.  It does
+   not specify an Internet standard of any kind.  Distribution of this
+   memo is unlimited.
+
+Copyright Notice
+
+   Copyright (C) The Internet Society (1999).  All Rights Reserved.
+
+Abstract
+
+   This memorandum describes a set of MIME types for use with the ISO
+   Interlibrary Loan Protocol (ISO 10160/10161). Two MIME types are
+   specified below.
+
+   The first is a media type to carry objects which are  BER [BER]
+   encoded ISO ILL Protocol Data Units (PDU's). BER are the basic
+   Encoding Rules used to encode  PDU's which have been described using
+   ASN.1 (Abstract Syntax Notation 1) [ASN.1] .
+
+   The second is for use with the associated document delivery
+   instructions.  Document Delivery Instructions (DDI) is an emerging
+   protocol which enables automatic electronic delivery of items. It
+   allows a request management system (which might have received a
+   request for an item via the ISO Interlibrary Loan Protocol (ISO
+   10160/10161))  to pass details of the request, item, and delivery, to
+   a delivery module, and to receive back reports on the delivery
+   process or arrival of an item. It is currently being submitted to the
+   ISO TC46/SC4/WG4 committee for approval as an ISO standard.
+
+Registration Information
+
+   Media type name: application
+   Media subtype name:  iso-10161-ill-1 - for BER encoded ISO ILL APDU's
+
+   Media type name:  application
+   Media subtype name:  ill-ddi - For associated Document Delivery
+                        Instructions
+
+
+
+Moulton & Needleman          Informational                      [Page 1]
+
+RFC 2503              ISO ILL Protocol MIME Types          February 1999
+
+
+   Required Parameter:  transfer-encoding
+
+   For BER-encoded PDU's or DDI's, the only current legal value of this
+   parameter is:
+
+    iso-8825-ber
+
+   The transfer-encoding parameter describes the way the PDU has been
+   encoded before being submitted to the transport service (in this case
+   MIME/RFC822).  The two protocols described in this RFC specify their
+   APDU's using ASN.1 (ISO 8824:1990) and the most common way of
+   encoding ASN.1 packets is to use the Basic Encoding Rules (BER ISO
+   8825)
+
+   The parameter is included to allow future use of these MIME types
+   with other encoding schemes. As an example, the ISO 10161 standard
+   also describes an encoding method using EDIFACT. In the future, other
+   schemes might also be employed. (Since the EDIFACT encoding is not
+   currently in use amongst the ISO 10161 and DDI communities, a value
+   for the transfer-encoding parameter to describe it is not being
+   registered in this RFC.)
+
+   Optional  parameter: iso-10161-apdu-type
+
+   Valid values are:
+
+   ILL-Request
+   Forward-Notification
+   Shipped
+   ILL-Answer
+   Conditional-Reply
+   Cancel
+   Cancel-Reply
+   Received
+   Recall
+   Returned
+   Checked-In
+   Overdue
+   Renew
+   Renew-Answer
+   Lost
+   Damaged
+   Message
+   Status-Query
+   Status-Or-Error-Report
+   Expired
+
+
+
+
+
+Moulton & Needleman          Informational                      [Page 2]
+
+RFC 2503              ISO ILL Protocol MIME Types          February 1999
+
+
+   This parameter is optional and can be provided for informational or
+   diagnostic purposes. The value of the PDU or DDI type can be
+   determined from the actual data sent. The use and format of the PDU's
+   and DDI's is defined in the relevant protocol documents which
+   describe them.
+
+Examples
+
+   Content-Type: application/iso-10161-ill-1;  transfer-encoding=iso-
+   8825-ber; iso-10161-apdu-type=Recall;
+
+   Content-Type: application/ill-ddi;  transfer-encoding=iso-8825-ber;
+
+Encoding
+
+   Since BER encoded material is binary in nature, some form of encoding
+   is needed when 7bit or 8bit transport mechanisms are employed.
+
+   The recommended  encoding for BER encoded PDU's  is Base64
+
+PDU's per Message
+
+   When used to send BER encoded PDU's or DDI's. Each MIME body part
+   will carry at most one BER encoded PDU or DDI. However, a single MIME
+   message containing multiple body parts can be used to transport more
+   than one BER PDU and or DDI.
+
+Security Considerations
+
+   There are no known security risks associated with transmitting BER
+   encoded PDU's in general. However, a particular BER encoded PDU or
+   DDI may have security considerations that make it inappropriate for
+   transmittal through public data networks unless appropriate
+   protection mechanisms, like encryption, are used. Such a situation
+   might occur, for example, when organizations are exchanging documents
+   that contain secure or classified information and it is necessary to
+   keep information about both the material being exchanged and the
+   exchanging partners confidential.
+
+Interoperability Considerations
+
+   BER is an international standard for encoding data meant to be
+   transferred between two systems that may store data in different
+   local formats internally [BER].
+
+
+
+
+
+
+
+Moulton & Needleman          Informational                      [Page 3]
+
+RFC 2503              ISO ILL Protocol MIME Types          February 1999
+
+
+References
+
+   [BER]   ISO/IEC 8825:1990 Information Technology - Open Systems
+           Interconnection - Specification of Basic Encoding Rules for
+           Abstract Syntax Notation One (ASN.1)
+
+   [ASN.1] ISO/IEC 8824:1990 Information Technology - Open Systems
+           Interconnection - Specification of Abstract Syntax Notation
+           One (ASN.1)
+
+   ISO 10160:1997 Information  and Documentation - Open Systems
+           Interconnection - Interlibrary Loan Application Service
+           Definition
+
+   ISO 10161-1:1997 Information and Documentation - Open Systems
+           Interconnection - Interlibrary Loan Application Protocol
+           Specification - Part 1: Protocol Specification
+
+Additional Information:
+
+   The National Library of Canada has been designated the maintenance
+   agency for the ISO ILL protocol. For more information on this MIME
+   type contact:
+
+   Barbara Shuh
+   Library Network Specialist
+   Information Analysis and Standards
+   Information and Technology Services
+   National Library of Canada
+   395 Wellington Street
+   Ottawa, Ontario CANADA
+   K1A 0N4
+
+   Phone: (819) 994-6969
+   Fax:   (819) 994-6835
+   EMail: barbara.shuh@nlc-bnc.ca
+
+
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+Moulton & Needleman          Informational                      [Page 4]
+
+RFC 2503              ISO ILL Protocol MIME Types          February 1999
+
+
+Authors' Addresses
+
+   Ruth Moulton
+   Consultant
+   65 Tetherdown
+   London N10 1NH
+   United Kingdom
+
+   Phone: +44 (181) 883 5823
+   EMail: ruth@muswell.demon.co.uk
+
+
+   Mark H Needleman
+   Data Research Associates, Inc.
+   1276 North Warson Road
+   P.O. Box 8495
+   St Louis, MO 63132-1806
+   USA
+
+   Phone: (80)0 325-0888 (US/Canada)
+          (314) 432-1100 x318
+   Fax:   (314) 993-8927
+   Email: mneedleman@dra.com
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+Moulton & Needleman          Informational                      [Page 5]
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+RFC 2503              ISO ILL Protocol MIME Types          February 1999
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+Full Copyright Statement
+
+   Copyright (C) The Internet Society (1999).  All Rights Reserved.
+
+   This document and translations of it may be copied and furnished to
+   others, and derivative works that comment on or otherwise explain it
+   or assist in its implementation may be prepared, copied, published
+   and distributed, in whole or in part, without restriction of any
+   kind, provided that the above copyright notice and this paragraph are
+   included on all such copies and derivative works.  However, this
+   document itself may not be modified in any way, such as by removing
+   the copyright notice or references to the Internet Society or other
+   Internet organizations, except as needed for the purpose of
+   developing Internet standards in which case the procedures for
+   copyrights defined in the Internet Standards process must be
+   followed, or as required to translate it into languages other than
+   English.
+
+   The limited permissions granted above are perpetual and will not be
+   revoked by the Internet Society or its successors or assigns.
+
+   This document and the information contained herein is provided on an
+   "AS IS" basis and THE INTERNET SOCIETY AND THE INTERNET ENGINEERING
+   TASK FORCE DISCLAIMS ALL WARRANTIES, EXPRESS OR IMPLIED, INCLUDING
+   BUT NOT LIMITED TO ANY WARRANTY THAT THE USE OF THE INFORMATION
+   HEREIN WILL NOT INFRINGE ANY RIGHTS OR ANY IMPLIED WARRANTIES OF
+   MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE.
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+Moulton & Needleman          Informational                      [Page 6]
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