[oslc-cm] Best approach for mapping priority/severity/action to&from server defined and custom values (URIs)

[Dave Steinberg]

Hi Steve,

Apologies for being very slow to see and respond to this. I've been very
busy with other product focuses, leaving much less time and attention for
OSLC than I would like.

As I recall, my issue with option #2 was the implication that a particular
OSLC-defined priority or severity value is actually a class, itself. From
the RDF Schema spec (http://www.w3.org/TR/rdf-schema/#ch_type):

   A triple of the form:
       R rdf:type C

   states that C is an instance of rdfs:Class and R is an instance of C.

And from the RDF Primer (http://www.w3.org/TR/rdf-primer/#schemaclasses):

   A class in RDF Schema corresponds to the generic concept of a Type or
   Category, somewhat like the notion of a class in object-oriented
   programming languages such as Java. RDF classes can be used to represent
   almost any category of thing, such as Web pages, people, document types,
   databases or abstract concepts.

Conceptually, I just cannot see "OSLC high severity," for example, as a
type or category, rather than an instance.

Cheers,
Dave

--
Dave Steinberg
IBM Security Systems
davidms at ca.ibm.com




From:	Steve K Speicher/Raleigh/IBM at IBMUS
To:	oslc-cm at open-services.net, Dave Steinberg/Toronto/IBM at IBMCA
Date:	06/20/2012 12:44 PM
Subject:	Best approach for mapping priority/severity/action to&from
            server defined and custom values (URIs)


Dave,

Can you provide a summary of why you objected to option #2 and recommended
option #3 from
http://open-services.net/bin/view/Main/CmPropsSeverityPriority ?
My notes are a bit weak here.

This discussion came up again and a similar pattern with state transitions
http://open-services.net/bin/view/Main/CmStateTransitions

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