[glue-wg] VOTE by 8/1: GLUE 2.1 for describing cloud resources?

[stephen.burke at stfc.ac.uk]

JP Navarro [mailto:navarro at mcs.anl.gov] said:
> 1) Use GLUE 2.0 with a Community Practice Profile that details how to
> describe cloud infrastructure using the existing 2.0 entities
> 2) Develop GLUE 2.1 adding new Cloud Computing entities (would be 100%
> backward compatible with GLUE 2.0 for non-Cloud entities)

I would vote for 2, but I'd like to reiterate my views on what it would mean. Any GLUE 2.1 schema should only add new entities, or new optional attributes to existing entities. In that case any valid GLUE 2.0 document is also valid in 2.1, and that would include the use of the 2.0 Computing Service objects to represent cloud services if that's what a project wants to do, so in effect I'm voting for both 1) and 2)!

>From past experience any new schema version is a long process to define and deploy. The current schema was defined in 2007/8 and this will be the first revision - it's quite possible that there will be a similar length of time before any further revision.  That means that people must be prepared to make sure that 2.1 is correct as far as possible, ideally including a prototype implementation before it's finalised, because it will be very hard to correct any mistakes.

Stephen

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