[oslc-core] domain URL for Service that supports creation/query of Service Provider resources - proposal for review

John Arwe johnarwe at us.ibm.com
Wed Nov 23 12:23:05 EST 2011


Attached please find a PDF with the draft changes per the enclosed thread 
and corresponding Core call.


Best Regards, John

Voice US 845-435-9470  BluePages
Tivoli OSLC Lead - Show me the Scenario




From:   Joe Ross/Austin/IBM at IBMUS
To:     Steve K Speicher/Raleigh/IBM at IBMUS
Cc:     oslc-core at open-services.net
Date:   08/26/2011 10:11 AM
Subject:        Re: [oslc-core] domain URL for Service that supports 
creation/query of Service Provider resources
Sent by:        oslc-core-bounces at open-services.net




Steve, 

We would  really prefer option (a). although I guess we could use option 
(b) informally, until necessary spec work is done. I don't think that we 
want to redefine all of the core resource types in another domain. 

Even if oslc:domain is not required, there needs to be some property to 
allow clients to understand what kind of Service this is. We are planning 
to use domain to allow clients to select the Service they want to interact 
with. 

Thanks, 

Joe 

================================================
Joe Ross/Austin/IBM, joeross at us.ibm.com
Tivoli Autonomic Computing & Component Technologies
512-286-8311, T/L 363-8311 


From: 
Steve K Speicher/Raleigh/IBM 
To: 
Arthur Ryman <ryman at ca.ibm.com> 
Cc: 
Joe Ross/Austin/IBM at IBMUS, oslc-core at open-services.net 
Date: 
08/26/2011 08:08 AM 
Subject: 
Re: [oslc-core] domain URL for Service that supports creation/query of 
Service Provider resources



Agree that this sounds like an interesting registry.  I also agree that 
what the spec says is quite restrictive in the sense of: 1) it doesn't 
allow for providers that don't fit any domain and 2) along these same 
lines, doesn't allow for pre-spec or proprietary explorations to introduce 
"private domains". 

To accommodate these two cases, I see 3 different alternatives: 
a. Just use the core namespace as Joe suggested 
b. Invent a "private domain" namespace and use that 
c. Create an OSLC WG, create a spec to support this, then use that 
namespace 

Doing (a) requires us to modify the definition or intention in the spec, 
which I think is the most desirable.  Doing (b) has nice qualities but 
again would make use issue some changes to the spec.  Finally (c) is what 
we have today but requires a little overhead. 

If there is the possibility of tweaking the spec, not making oslc:domain 
required on oslc:Service.  Though this has some breaking possibilities 
that we should avoid.  I believe the other options mentioned provide for 
the desired use case without impacting many, if any, clients. 

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


> From: Arthur Ryman <ryman at ca.ibm.com> 
> To: Joe Ross/Austin/IBM at IBMUS, 
> Cc: oslc-core at open-services.net, oslc-core-bounces at open-services.net 
> Date: 08/26/2011 08:00 AM 
> Subject: Re: [oslc-core] domain URL for Service that supports 
creation/query
> of Service Provider resources 
> Sent by: oslc-core-bounces at open-services.net 
> 
> Joe,
> 
> Your Service Provider registry service sounds interesting.
> 
> I am a little concerned about you using 
http://open-services.net/ns/core# 
> as the domain since we haven't specified what that would mean. Here is 
the 
> definition of  what a Domain is:
> 
> OSLC Domain: an OSLC Domain is one ALM or PLM topic area such as Change 
> Management, Requirements management or Automation. Each OSLC Domain will 

> have its own OSLC specification that complies with this Core 
> specification. 
> 
> I think we should have a spec that outlines the types of resources in 
the 
> domain. You have selected just one type of  core resource.  Perhaps you 
> should specify that and coin a URI for it?
> 
> Regards, 
> 
___________________________________________________________________________ 

> 
> Arthur Ryman 
> 
> DE, PPM & Reporting Chief Architect
> IBM Software, Rational 
> Toronto Lab | +1-905-413-3077 (office) | +1-416-939-5063 (mobile) 
> 
> 
> 
> 
> 
> From:
> Joe Ross <joeross at us.ibm.com>
> To:
> oslc-core at open-services.net
> Date:
> 08/25/2011 10:49 PM
> Subject:
> [oslc-core] domain URL for Service that supports creation/query of 
Service 
> Provider resources
> Sent by:
> oslc-core-bounces at open-services.net
> 
> 
> 
> 
> In Tivoli, we are creating a Provider Registry that is itself 
implemented 
> as a Service Provider (a Service Provider for Service Provider 
resources). 
> We want to do this, so that we can support creation of Service Provider 
> records using a Creation Factory and querying for Service Providers 
using 
> a Query Capability. 
> 
> As part of defining the Service, we need to provide an oslc:domain with 
> namespace URI. Does it make sense for us to use the OSLC Core namespace 
> URI  (http://open-services.net/ns/core# ) for this? That seems logical 
> since all of the resources we are supporting in this Provider Registry 
> Service Provider are defined in the OSLC Core spec. 
> 
> Thanks much, 
> 
> ================================================
> Joe Ross/Austin/IBM, joeross at us.ibm.com
> Tivoli Autonomic Computing & Component Technologies
> 512-286-8311, T/L 
363-8311_______________________________________________
> Oslc-Core mailing list
> Oslc-Core at open-services.net
> http://open-services.net/mailman/listinfo/oslc-core_open-services.net
> 
> 
> 
> 
> _______________________________________________
> Oslc-Core mailing list
> Oslc-Core at open-services.net
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