[oslc-core] OSLC Domain Version String usage and identification

[Steve K Speicher]

To be consistent across different usages and identification of what 
version of what domain a service provider implements I recommend these 
changes:

1) Have a single HTTP header called "OSLC-Version".  Its value is limited 
to each domain's "Version string".  For example, of OSLC-CM 2.0 it would 
be "oslc-cm-2.0"

2) Within the definition of the oslc:domain property on oslc:Service (and 
on oslc:ServiceProviderCatalog):

Currently it states:
 oslc:domain (Resource, exactly-one) - namespace URI of the OSLC domain 
specification that is implemented by this service. 

I recommend we change this to use the "Version string" above, such that it 
reads:
 oslc:domain (String, exactly-one) - Version string of the OSLC domain 
specification that is implemented by this service. 

OR...Another approach would be to eliminate the version string and just 
use namespace URI in HTTP header parameter

Thanks,
Steve Speicher | IBM Rational Software | (919) 254-0645
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