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Subject: Re: autogeneration of UML to XML

Thank you Kurt for your mail. I thought that the automats had stopped working since having looked at the Rational document I was beginning to think that it wouldn't be too difficult to do the same thing for UN/EDIFACT :-)))
Anyway I'm enclosing the MDL file for you to transform. And I wish you all the best. I'm looking foreward to seeing the results.
----- Original Message -----
Sent: Friday, April 20, 2001 9:56 PM
Subject: RE: autogeneration of UML to XML

Mike and others,


Finally got around to finding this thread…


What’s really needed to complete the path (UML to DTD/Schema) in a standard way, is a UML Profile for XML specification from the OMG, the owner of UML. It would detail the rules and mapping from UML elements (class, association, stereotypes, etc.) to DTD/Schema. Without that we are left with the sited Rational document (http://www.rational.com/uml/resources/documentation/index.jsp) or some other “meta-model”. Also understand that the technology surrounding OMG’s UML and XMI (IBM, Data Access, Unisys) has solutions to auto generate DTDs of the UML model. This is somewhat different than modeling a DTD in UML and autogenerating it. I can go into more details on this if you like.


In order to autogenerate a DTD/Schema from a UML model I would need the actual UML model not the PDF. If you could send it to me, I would be grateful. That doesn’t mean I will be able to do it in short order since it most likely doesn’t follow the Rational Document and my solution (skunk works) may not be robust enough to handle it. However, I plan on taking on the challenge as time permits. I’ve cleared the major hurdles so it shouldn’t be that bad, plus I have a flight to Paris this Saturday, lots of uninterrupted time. The procedure is to first transform the UML model into OMG XMI, then use XSLT on the XMI to generate a DTD. The main drawback to this approach is that it is very compute and resource intensive. I’m hoping Moore’s law will help me out here :). Also, my scripts only generate DTDs, I haven’t done the work yet for Schemas.


To satisfy the “doubting Thomas” in you, I wish I could send you a simple example UML, DTD, XSL scripts and instructions but I need to first clear it with Lucent’s intellectual property unit, I’m working on it. So you will have to take my word on it for now. I did attach the simple model, resultant DTD and helper scripts to give you some level of proof. Just so you know, this exact methodology has been provided to the OAGI for them to generate DTDs from their UML model of OAGI BODs (they protect the intellectual property).


Regards and I look forward to working on your UML,


Kurt Kanaskie

Lucent Technologies


(610) 778-1069 Note the new number!


-----Original Message-----
From: Mike Conroy [mailto:michael.conroy@wanadoo.fr]
Sent: Friday, April 06, 2001 5:19 PM
To: ebXML Core
Subject: autogeneration of UML to XML


Ever since William Kammerer said : "Heck, I haven't even yet seen anyone take a UML data model and generate schemas from it -  and that should be a lot simpler" theres been a flood of e-mails from people such as Duane Nickull of XML GLobal Technologies, Arofan Gregory of Commerceone, James Whittle of  e-centre, Philip goatly of Bolero, and Kris KETELS of Swift, have all jumped into the thread to tell us that they currently have the capability to "autogenerating from UML" XML schemas.


Well I for one am most impressed. However, I do have a grain of doubting Thomas, in my vains. I made a UML class model of the core components, which I am led to believe is a faithful rendering of the Excel spreadsheet.


Just to give me, and perhaps many others who are listening in, an idea of how the autogeneration from UML works, would someone like to demonstrate their capabilities on the enclosed core components model ? It might help settle a lot of the dust that has been raised on the subject.






core component.mdl

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