[glue-wg] Adopting a GLUE2 XML Schema?

[Sergio Andreozzi]

Hello Balazs et al,

I apologize for the long silence on this list. We'll try to finalize  
the XML Schema rendering by the end of the year.

As far as I remember the arguments pro/con the two versions of the  
schema were:

1. Sergio/Balazs: hierarchical version
pro: better readability, easier to query based on branch selection,  
exploits hierarchical nature of XML in natural way
con: aggregating info from different info providers needs more care

2. TeraGrid/Warren: flat version
pro: easier to aggregate bits of XML from different info provider
con: less readable, does not exploit hierarch nature of XML

in theory there is no reason for not having both; the important is  
that all the classes/attributes and relationships are represented;  
nevertheless, having one version improves chances for data exchange  
without further processing.
At this point in time, probably it is better to go ahead with both and  
collect the experience. Based on this, adopters will make their on  
choice.


Cheers, Sergio


On 02/ott/09, at 17:27, Balazs Konya wrote:

> Dear All,
>
> The completion of the glue2 specification in terms of updating (re- 
> defining?)
> the renderings is still a pending issue. We have released the model  
> but not yet
> the renderings.
>
> I am happy to see that few groups started to work in this direction.
>
> Let me point you to our wiki page where the different attempts are  
> collected:
>
> http://forge.gridforum.org/sf/wiki/do/viewPage/projects.glue-wg/wiki/GLUE2XMLSchema
>
> (linked from main glue wiki under Realizations to Concrete Data  
> models)
>
> Within nordugrid we have also worked a bit on the xml schema, more  
> or less
> updated it to match the final specification. You can find the  
> nordugrid version
> of the glue 2 xml schema here:
>
> http://svn.nordugrid.org/trac/nordugrid/browser/arc1/trunk/doc/tech_doc/infosys/GLUE2.xsd
>
> and here is an example xml document based on that schema describing  
> nordugrid
> resources:
>
> http://svn.nordugrid.org/trac/nordugrid/browser/arc1/trunk/doc/tech_doc/infosys/nordugrid_domain.xml
>
> Before the summer i started a discussion with Sergio about the xml  
> rendering
> update, we wanted to start/speed up the rendering work a bit.  
> Unfortunately,
> lots of other thing slowed down the idea.
>
> All in all, I agree with Stephen that it has to be a community effort.
> I guess it is time to schedule for phone calls related to the xml  
> rendering.
>
> bye,
> Balazs Konya
>
> -- 
> Balázs Kónya
>
> NorduGrid Collaboration
> http://www.nordugrid.org
>
> Lund University	                        balazs.konya at hep.lu.se
> High Energy Physics                     phone:   +46 46 222 8049
> BOX 118, S - 221 00 LUND, Sweden        fax:     +46 46 222 4015
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