[vodml] EnumLiterals and vodml-id

[François Bonnarel]

Hi all,
On 19/02/2016 21:28, CresitelloDittmar, Mark wrote:
> All,
>
> An update on this topic.
> Earlier this month, a group of us got together in Baltimore for a 
> focus meeting on some vo-dml and mapping topics.
> Gerard will be posting the notes from this meeting on the vo-dml twiki 
> page.
>
> On this topic, we reviewed the issue and concerns about whether or not 
> a 'label' should be added
> to the vo-dml EnumLiteral definition since the 'name' is required to 
> conform to the vo-dml name pattern.
> We also mapped out how this would be used in practice.
>
> In the discussion, it was clarified that the user would add 
> annotations mapping their local literal strings (label)
> to the vo-dml EnumLiteral.  If the user happens to be using the string 
> matching the EnumLiteral name, then
> the necessary annotation is simplified, since there is no need to 
> define the mapping.  In this way, a data
> product can retain the 'native' values (and retain compatibility with 
> local software) AND be properly mapped
> to the vo modeled element to be compatible with VO software.
>
> Validators would be able to interpret the annotation when vetting an 
> instance.
>
> I am satisfied with this, and am content to let the EnumLiteral 
> definition in the vo-dml specification stay as it is.
>
>
This sounds reasonable, I am satisfied too, thinking to future DAL reuse 
of DatasetMetadata. A question below, just to better understand what's 
going on
> Actions:
>   + MCD - modify the DatasetMetadata UML/model to define compliant 
> enumeration literal names.
>                NOTE: the document may define a 'label' for the 
> literals, which would allow continuity with
>                           existing/previous model definitions, but 
> this is not to be considered under the
>                           vo-dml scope.
>                NOTE: it is also to be reviewed whether these are 
> better represented as Enumeration-s or as SemanticConcept-s
>                {I'll be starting a Dataset thread about this.}
>
>   + GL - review and enhance the Mapping document description of 
> Enumeration option tagging (pg 23).
I think you mean page 32 ? (IVOA Working draft 2015 10 10)
> It is not clear that the
>             value being annotated is the user string, and that this 
> provides a bridge between the user serialization and the vo-dml/model 
> specification.
Actually ther wil be a modification in the VODM-XML xsd by adding a 
label element inside <enumeration> ??? Is that what we have to understand ?

Cheers
François
>
> Mark
>
>
>
>
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>


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François   Bonnarel           Observatoire Astronomique de Strasbourg
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