Cocoon for web-app

[H....@MI.unimaas.nl]

Guys (and gals),

I'm very pleased to use Cocoon (2.1.3) for my web application. Although I
still need to learn a lot about the inner workings, I do feel the result
will be a major improvement over my current, JSP-based version. So I'd like
to take the opportunity to express my gratitude to both the developers and
the responsive community.

Now, looking at other "requirements/features" I wonder if I can (ab)use
Cocoon for this or should revert to something else. I'd really like to get
the opinion of some of you on this.

Something about the web application: it's basically a database-driven
application, but this one is an electronic patient record system used by a
team of different therapists to keep each other (and themselves) informed on
the progress of the patient they are treating. 
Now, apart from the specialized database connections (which are now coming
along) I need to connect to a knowledge engine (Windows-based system written
in Delphi) and interact with it. A typical scenario could be:

- user enters data
- webapp sends data to knowledge engine for verification
- knowledge engine sends reminder to webapp
- webapp displays reminder on screen
- webapp handles user action and, if necessary, send result to knowledge
engine

Another typical scenario:
- knowledge engine polls data (either its own cache or directly using a
different database connection, I'm not sure which one is more practical) and
initiates reminder to webapp (e.g. something has to happen after a certain
period of time)
- webapp displays reminder on screen
- webapp handles user action and, if necessary, send result to knowledge
engine

Although this is not complete, nor the only possible scenarios, it shows the
main interaction. I could connect to the knowledge engine using SOAP, but I
really wonder if I can/should use Cocoon to handle this or if I should
revert to something else. I'm thinking of flow..... but how....

Bye and thanks, Helma


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