Internet Open Trading Protocol - IOTP Version 1.0
RFC 2801

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Network Working Group                                          D. Burdett
Request for Comments: 2801                                   Commerce One
Category: Informational                                        April 2000

                 Internet Open Trading Protocol - IOTP
                              Version 1.0

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 (2000).  All Rights Reserved.

Abstract

   The Internet Open Trading Protocol (IOTP) provides an interoperable
   framework for Internet commerce. It is payment system independent and
   encapsulates payment systems such as SET, Secure Channel
   Credit/Debit, Mondex, CyberCoin, GeldKarte, etc. IOTP is able to
   handle cases where such merchant roles as the shopping site, the
   Payment Handler, the Delivery Handler of goods or services, and the
   provider of customer support are performed by different parties or by
   one party.

Table of Contents

   1.  Background .....................................................7
     1.1  Commerce on the Internet, a Different Model .................7
     1.2  Benefits of IOTP ............................................9
     1.3  Baseline IOTP ..............................................10
     1.4  Objectives of Document .....................................10
     1.5  Scope of Document ..........................................11
     1.6  Document Structure .........................................11
     1.7  Intended Readership ........................................13
         1.7.1  Reading Guidelines ...................................13
   2.  Introduction ..................................................14
     2.1  Trading Roles ..............................................16
     2.2  Trading Exchanges ..........................................18
         2.2.1  Offer Exchange .......................................19
         2.2.2  Payment Exchange .....................................21
         2.2.3  Delivery Exchange ....................................24
         2.2.4  Authentication Exchange ..............................26
     2.3  Scope of Baseline IOTP .....................................28

Burdett                      Informational                      [Page 1]
RFC 2801                       IOTP/1.0                       April 2000

   3.  Protocol Structure ............................................31
     3.1  Overview ...................................................32
         3.1.1  IOTP Message Structure ...............................32
         3.1.2  IOTP Transactions ....................................34
     3.2  IOTP Message ...............................................35
         3.2.1  XML Document Prolog ..................................37
     3.3  Transaction Reference Block ................................37
         3.3.1  Transaction Id Component .............................38
         3.3.2  Message Id Component .................................39
         3.3.3  Related To Component .................................41
     3.4  ID Attributes ..............................................42
         3.4.1  IOTP Message ID Attribute Definition .................43
         3.4.2  Block and Component ID Attribute Definitions .........44
         3.4.3  Example of use of ID Attributes ......................46
     3.5  Element References .........................................46
     3.6  Extending IOTP .............................................48
         3.6.1  Extra XML Elements ...................................49
         3.6.2  Opaque Embedded Data .................................50
     3.7  Packaged Content Element ...................................50
         3.7.1  Packaging HTML .......................................52
         3.7.2  Packaging XML ........................................53
     3.8  Identifying Languages ......................................54
     3.9  Secure and Insecure Net Locations ..........................54
     3.10 Cancelled Transactions .....................................55
         3.10.1 Cancelling Transactions ..............................55
         3.10.2 Handling Cancelled Transactions ......................56
   4.  IOTP Error Handling ...........................................56
     4.1  Technical Errors ...........................................57
     4.2  Business Errors ............................................57
     4.3  Error Depth ................................................58
         4.3.1  Transport Level ......................................58
         4.3.2  Message Level ........................................58
         4.3.3  Block Level ..........................................59
     4.4  Idempotency, Processing Sequence, and Message Flow .........61