Hi,

We've had a discussion during last OCCI-wg session in Roma about the way to specify entity ids.

As specified in current documents, entity ids can be specified in different ways _at the same time_ at creation time and implementations behaviour is not specified.

I suppose we should consider either removing different ways to specify ids either specify implementation behaviour.

Here are the different ways the can be specified:

* JSON rendering:

* 'id' attribute in JSON document

* 'occi.core.id' attribute in the 'attributes' property of the JSON document

* HTTP protocol:

* PUT request: url of the request + rendering specific (see above)

* POST request: rendering specific

In general, for renderings where core attributes are rendered differently from others (id, source, target, etc), it is not specified how to deal with attributes being set twice.

A suggestion will follow in a next e-mail. For me, the most important being to avoid ambiguities as to improve implementations interoperability.

Regards,

-- 
Jean Parpaillon
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Open Source Consultant
Director @ OW2 Consortium
OCCIware Strategic Orientation Committee Chairman
Research Engineer @ Inria
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