confusion about schema.org datatypes

[VladimirAlexiev]

schemaorg/schemaorg#1781 argues that schema.org datatypes should never be used, in favor of XSD datatypes.

https://github.com/ESIPFed/science-on-schema.org/blob/master/validation/shapegraphs/soso_common_v1.2.2.ttl shows confusion about such datatypes, using eg sh:class SO:Number.
See schemaorg/schemaorg#1781 (comment) for details.

[smrgeoinfo]

so the recommendation would be that that shape should perhaps look like this:

sh:or (
        [    sh:nodeKind sh:Literal ;  ]
        [  sh:datatype xsd:decimal;  ]
    );

SHACL spec seems to indicate a Literal is a value with a declared datatype that could be any rdf datatype (iri, URL, number string, etc.), so isn't 'or sh:datatype xsd:decimal' redundant?

[VladimirAlexiev]

@smrgeoinfo

• Your example means the same as merely sh:nodeKind sh:Literal because sh:datatype xsd:decimal is a more specialized condition (all decimals are also Literals)
• I think that SO:Dataset-version should be xsd:string only, because versions are identifiers not numbers. Version 2.0 may look like a number to someone... until 2.0.1 is released.