SAP Workflow with non-SAP systems

[Roehlen, Peter]

Hi all,
 
The company I work for are just now starting to get excited about the
possibilities behind creating all of our business processes as workflows.  I
am pushing this as an ABAP developer and the self-nominated workflow person
here even though I am still fairly new to workflow.
 
The inevitable question has come up:  How do we include processes and steps
in our non-SAP systems, and events from our non-SAP systems as steps in our
SAP workflows?
 
For some background information, our non-SAP core systems are mostly Oracle
based (as is our SAP system), running on Unix.  We do have a couple of
Visual Basic front end/SQL server back end systems as well.
 
If anyone has any suggested reading topics or advice I would appreciate all
comments.
 
Thanks
 
Peter.
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