=Paper=
{{Paper
|id=Vol-30/paper-6
|storemode=property
|title=Contract-Based Transaction Management in Cross-Organizational Workflow Management
|pdfUrl=https://ceur-ws.org/Vol-30/paper6.pdf
|volume=Vol-30
|dblpUrl=https://dblp.org/rec/conf/isdo/Grefen00
}}
==Contract-Based Transaction Management in Cross-Organizational Workflow Management==
<pdf width="1500px">https://ceur-ws.org/Vol-30/paper6.pdf</pdf>
<pre>
                                                            Session 4: Electronic Contracts




    Contract-Based Transaction Management in
    Cross-Organizational Workflow Management
                                 Paul Grefen
                            University of Twente
                            grefen@cs.utwente.nl

                                   Abstract
Cross-organizational workflow management is an essential ingredient for process
integration in virtual enterprises. To obtain cross-organizational workflow
processes with robust semantics, these processes should be supported by high-
level cross-organizational transaction management. In this context, transaction
management should support both intra- and inter-organizational transaction
semantics. An important aspect of the latter is support for rollback over
organization boundaries.

In static virtual enterprises, complete transaction structures can be statically
defined in cross-organizational workflow processes. In dynamic virtual
enterprises, though, transaction structures must be constructed on-the-fly, based
on process control requirements of the partners that decide to form the virtual
enterprise.

This presentation shows how the problem of cross-organizational transaction
management is approached in the CrossFlow project, in which virtual enterprises
are dynamically formed on the basis of contracts. These contracts specify the
workflow processes on an abstract level, including their process control and
transactional aspects. The transaction model used is an extension of the saga-
based model developed in the WIDE project. The transactional constructs in the
contract are interpreted by a two-layer transaction management subsystem
distributed over the partners in the virtual enterprise. A prototype of this
subsystem will be part of the CrossFlow demonstrator system.
Session 4: Electronic Contracts

</pre>