HTMLDB and Workflows - pl/flow, Oracle Workflow or BPEL?

Hi,
I am looking for a workflow engine to integrate with HTMLDB for workflow applications.
Most of the stuff I try to do will happen in the database (as of now).
Which one should I choose? Which one is easy to use (intuitive, good samples)?
I haven't used any of those, which is the fastest to learn?
Can I graphically model the workflows with pl/flow, so that they can be modified by administrators later?
What about the future? It seems to me that many links to Oracle Workflow seem to disappearing from OTN.
I find pl/flow interesting, but is it used a lot? Is there still development going on?
Any experiences / suggestions will be helpful. Or perhaps you use something completely different?
Thanks,
~Dietmar.

Hi Bob,
thanks for thoughts on this.
I was in touch with the lead developer of pl/flow and he explained that there was not much to add since the package was XPDL interface 2 compliant and most of the users were happy with it.
You can even import workflows from XPDL visual workflow modelers which has some charme, since it is standards based.
I was reluctant to use Oracle Workflow for several reasons.
* It appears to be complex
* It is not standards based
* The administration interface looks "aged" (that lead me to believe that Oracle had not much interest in further promoting the product)
* I don't know where the product is heading since BPEL is the big hype and the development of Oracle's former Java based workflow product is being stopped.
The cost shouldn't be an issue since it is included in the database license as far as I have researched.
I would be interested in all developer experiences using Oracle Workflow with HTMLDB or other tools.
Is perhaps the HTMLDB - developer team working on an integration with Oracle Workflow?
Thanks,
~Dietmar.

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