Prov-WD: valueType in ValueDescription and ParameterDescription unclear

[Laurent MICHEL]

  "VODML value type, see Lemson and Laurino et al. (2016)"

should be replaced with

  "value types of the VODML ivoa base model, see Lemson and Laurino et 
al. (2016)"

LM
Le 16/07/2019 à 08:42, Ole Streicher a écrit :
> Good morning,
> 
> the attrbutes valueType in ValueDescription and ParameterDescription
> have the description (2.6.2 "ValueEntity and ValueDescription classes",
> table 18, pg.28):
> 
> "VODML value type, see Lemson and Laurino et al. (2016)"
> 
> I doubt that this is usable, since it basically allows *all* VO-DML
> value types:
> 
>   * PrimitiveType
>   * Enumeration
>   * DataType
>   * ObjectType
> 
> Having some complex ObjectType stored in a Value is however not
> interoperable, since the serialization as string is not at all defined,
> which makes it impossible for a client to interpret the value. It is
> also unclear what to fill into that field. The hwole VO-DML id? What
> about locally defined ObjectTypes?
> 
> Also I doubt that we shuld allow f.e. Quantities here (since they
> duplicate the unit).
> 
> IMO the only cases we have so far are the simple types: strings and
> numbers (integer and floating point). We should restrict here to those,
> or significantly improve the documentation.
> 
> Best
> 
> Ole
> 

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