- From: Holger Knublauch <holger@topquadrant.com>
- Date: Mon, 02 Feb 2015 10:07:07 +1000
- To: RDF Data Shapes Working Group <public-data-shapes-wg@w3.org>
I believe there is a high-level requirement that has not been sufficiently captured yet: how to make sure that the new standard provides a reasonably evolutionary path from existing systems and data models into the new closed constraint checking world. There is obviously a very large body of existing ontologies and instance data out there. Some of these are written down as User Stories including SKOS [1], Data Cube [2], PROV [3], but there is also a large body of lesser-known or even private data models in use. The developers of those ontologies have already done a lot of hard work in devising suitable class hierarchies (via rdfs:subClassOf) and these hierarchies could often form the backbone of a "shapes" hierarchy too. Likewise, there is lots of instance data out there, often relying on rdf:type triples to identify applicable owl:Restrictions or RDFS ranges/domains. I believe it is very important for the new shapes language to make it as easy as possible to reuse that data, and provide an evolutionary path for users who want to take their existing applications as starting point and extend them with closed-world semantics. Holger [1] https://www.w3.org/2014/data-shapes/wiki/User_Stories#S21:_SKOS_Constraints [2] https://www.w3.org/2014/data-shapes/wiki/User_Stories#S22:_RDF_Data_Cube_Constraints [3] https://www.w3.org/2014/data-shapes/wiki/User_Stories#S30:_PROV_Constraints
Received on Monday, 2 February 2015 00:07:43 UTC