[glue-wg] GLUE for describing resource requests (use case DGSI)

[Sergio Andreozzi]

Hi Mikael,

the new rendering of GLUE 2.0 that we are preparing will solve this issue.
We'll contact you when a new draft will be ready, before the end of the
year.

Cheers, Sergio

On 18 November 2010 12:27, Mikael Högqvist <hoegqvist at zib.de> wrote:

> Hi,
>
> I'm working in the DGSI project (a German D-Grid project) where our
> goal is to design and implement an interoperability framework between
> community schedulers and community bound resources. More specifically,
> this include protocols and services for delegation of activities as
> well as resources. We are primarily basing our protocols on OGF
> standards and recommendations and have tight collaboration with both
> the GRAAP (WS-Agreement/Negotiation) and DCI-Fed working groups within
> OGF.
>
> In the first information model we decided to use GLUE 2.0 for both
> resource descriptions and resource request specification. However
> describing resource requests with GLUE turned out to be difficult to
> implement. The main issue that we have is the restrictions in the GLUE
> 2.0 XML schema which makes it difficult to use only specific
> elements/group of elements in a document instance.
>
> For example, we would like to use the AccessPolicy element to describe
> requirements on who (e.g. DN/VO) is authorized to access a delegated
> resource. But to use this element, we need to create the entire
> hierarchy with Service/ComputingService/ComputingEndpoint and their
> respective required elements (e.g. ID, QualityLevel, ...) when using
> the GLUE 2.0 XSD.
>
> Currently, our solution is to use JSDL for specifying both activity
> and resource delegation requests. However, JSDL is not sufficient for
> all our use cases/requirements and we would like to use GLUE for
> specifying resource requests in our next version.
>
> Is there any work going on in the glue-wg to make the XSD rendering
> more lenient towards other use cases such as resource requirement
> specification? Or making it possible to use a subset of GLUE and
> combine it with other info models such as JSDL?
>
> Thank you in advance and Best Regards,
> Mikael Högqvist
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>



-- 
Sergio Andreozzi - Policy Development Manager
EGI.eu - Amsterdam - The Netherlands - http://egi.eu
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