[wg11] Re: [step-os] Using STEPMod XML Representation of EXPRESS

[Ed Barkmeyer]

All,

The attached two emails represent a proposal for resolving a Part 28 
issue.

There was a ballot comment from Japan requesting Part 28 to provide a 
means for including "an XML representation of the EXPRESS schema" in 
addition to the "text" version currently supported.  At the Part 28 
Editing meeting we guessed that the request was for the feature that was 
in Part 28 v1.  Apparently that was wrong!  This email would have been a 
more useful ballot comment, but neither of these contributors thought to 
provide it in July, nor did either think to provide this recommendation 
to the editing meeting.  Now we are approaching DIS ballot, but there is 
still time for them to make up for their poor timing.

If Japan concurs, David and Josh, will you please write the text to use 
the STEPmod DTD, suitably rendered into XML Schema, to provide the 
resolution for ballot comment JP-5.  It goes in Clause 5.4 of Part 28. 
You can markup N229 or Heidi's latest draft.

Then you can actually make (a part of) an ISO standard that is "de 
facto", instead of a competitor.

-Ed

-- 
Edward J. Barkmeyer                        Email: edbark at nist.gov
National Institute of Standards & Technology
Manufacturing Systems Integration Division
100 Bureau Drive, Stop 8264                Tel: +1 301-975-3528
Gaithersburg, MD 20899-8264                FAX: +1 301-975-4694

"The opinions expressed above do not reflect consensus of NIST,
  and have not been reviewed by any Government authority."

--

Joshua Lubell wrote:

> I think using the stepmod DTD as a de facto standard is a great idea. I 
> also think a specification document to accompany the DTD would be useful 
> to would-be software developers. I would be willing to help write such a 
> specification document.
> 
> Josh
> 
> David Price wrote:
> 
>> All,
>>
>> I have a general question for you folks. As you know, I’ve been 
>> playing with UML/XMI for a long time and trying to relate it to 
>> EXPRESS. All the work I’ve done with EXPRESS is based on the XML 
>> representation of EXPRESS used by STEPMod, not the Part 28 Edition 1 
>> XML DTD. This has happened because the Part 28 DTD required every 
>> expression to be broken into bits which seemed pointless to most 
>> people - and also meant reconstructing EXPRESS from the XML using XSLT 
>> would be very difficult.
>>
>> So, my question is … Are people generally comfortable with using the 
>> STEPMod XML representation of EXPRESS as the de facto standard for 
>> open-source STEP work?
>>
>> ...
>>
>> Cheers,
>>
>> David
>> _______________________________________________
>> step-os mailing list
>> step-os at step.nasa.gov
>> http://step.nasa.gov/mailman/listinfo/step-os