Dear all, Thanks Nicola, that makes sense. I wonder if it is worth talking about what namespace the extensions have going forward. Taking CRMDig as an example. It arose from a project within which FORTH was a major partner and is an outcome of that work. It thus makes sense that it is registered under a FORTH namespace. But if it is considered an official extension, should it eventually have a namespace within the cidoc crm world for generally consistency / understandability / maintenance? May be worth a SIG conversation?
Best, George On Mon, Dec 20, 2021 at 9:51 AM Nicola Carboni <nic.carb...@gmail.com> wrote: > Dear George, > > The namespace to be used should be the xml:base value in the RDF > document. Example: > > <rdf:RDF xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"; > xmlns:rdfs="http://www.w3.org/2000/01/rdf-schema#"; xml:lang="en" > xml:base="http://www.cidoc-crm.org/cidoc-crm/CRMsci/";> > > <rdf:RDF xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"; > xmlns:rdfs="http://www.w3.org/2000/01/rdf-schema#"; > xml:base="http://www.ics.forth.gr/isl/CRMgeo/"; xml:lang="en"> > > The confusion started because the namespace has changed over time > > CRMdig 3.2.2 had > > <rdf:RDF xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"; > xmlns:rdfs="http://www.w3.org/2000/01/rdf-schema#"; > xml:base="http://www.ics.forth.gr/isl/CRMext/CRMdig.rdfs/"; xml:lang="en"> > > The latest version is > > rdf:RDF xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"; > xmlns:rdfs="http://www.w3.org/2000/01/rdf-schema#"; > xml:base="http://www.ics.forth.gr/isl/CRMdig/"; xml:lang="en"> > > Generally they are both documented in prefix.cc, hence someone is still > using the old ones. > > For clarifying the confusion, It is possible to write explicitly in the > RDF itself the preferred namespace and prefix, using the properties > vann:preferredNamespaceUri and vann:preferredNamespacePrefix . Example (in > ttl) from VIR <http://prefix.cc> : > > vann:preferredNamespacePrefix "vir" ;vann:preferredNamespaceUri > "http://w3id.org/vir#"; ; > > Best, > > Nicola > > -- > Nicola Carboni > Visual Contagions > Digital Humanities - dh.unige.ch > Faculté des Lettres > Université de Genève > 5, rue de Candolle > 1211 Genève 4 > > On 15 Dec 2021, at 11:58, George Bruseker via Crm-sig wrote: > > Dear all, > > I am wondering if anybody else struggles with what official namespace ot > use for the CRM extensions. I'm not really sure how the situation stands. > Should the minisites for each extension have a prominent place where they > display the namespaces just so we all follow the same procedure? Do I miss > what is already there? > > Best, > > George > _______________________________________________ > Crm-sig mailing list > Crm-sig@ics.forth.gr > > http://lists.ics.forth.gr/mailman/listinfo/crm-sig > >
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