[glue-wg] Adopting a GLUE2 XML Schema?

[stephen.burke at stfc.ac.uk]

glue-wg-bounces at ogf.org 
> [mailto:glue-wg-bounces at ogf.org] On Behalf Of Warren Smith said:
> Of course, the TeraGrid GLUE 2 XML Schema isn't a standard 
> and I can't say how similar it will be to an official OGF GLUE 2 XML
Schema.

Well, this is supposed to be a community effort so it should be possible
for you to contribute to the definition of the official XML rendering
... however personally I'm not involved in that so I can't comment
directly.

> In 
> fact, one warning I'd give about the TeraGrid schema is that 
> we chose a 
> flat hierarchy of XML elements in that schema (e.g. 
> ComputeActivity is a 
> sibling of ComputeShare instead of a child of ComputeShare). The last 
> discussions I remember seeing on the GLUE working group list 
> seemed to 
> have more people favoring a deeper hierarchy...

I think Nordugrid favoured that. However, for the LDAP rendering we
tried to keep the abstract schema properties as much as possible - LDAP
obviously forces you to have a tree, but the objects are all linked via
foreign keys and unqiue IDs so you don't need the tree to navigate. In
that case you could potentially restructure the tree without changing
any queries. If XML follows the same kind of route you could even do
joint queries across representations.

Stephen
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