Indeed! Christian-Emil
________________________________ From: Crm-sig <crm-sig-boun...@ics.forth.gr> on behalf of Martin Doerr <mar...@ics.forth.gr> Sent: 28 February 2018 11:38 To: crm-sig@ics.forth.gr Subject: Re: [Crm-sig] Domain and range of P90 Dear All, I'd like to remind you that RDF-OWL is only a historical phenomenon in the history of knowledge representation. The CRM needs to define semantics that cover E-R, TELOS, KL-One, KIF, OIL, DAML-OIL, DL, RDFS, XML, Jason, and whatever will come up. Therefore we define it in FOL. The puzzling gap to primitive values has on one side to do with hardware, which cannot cover infinite mathematical spaces. Consequently, each machine and encoding convention uses a different subset. The other difference is deeper: On the machine, you can only use identifiers to talk about things. Digital objects themselves can be in the machine, but not necessarily are, and all others cannot. This causes a semantic gap which is common to all database schemata, and needs to be resolved by a series of practical conventions separately for each datamodel. It can only be resolved by having an ontology, which in the first place makes the distinction, so that it becomes clear, what each database schema describes about the world and what description is. I hope this makes things theoretically clearer: The puzzle is what is information itself. Best, Martin On 2/28/2018 10:39 AM, Conal Tuohy wrote: I have used rdf:value for this purpose. https://www.w3.org/TR/rdf-schema/#ch_value The CRM's origin was outside of the RDF space, and it is still considered to be something more abstract than any concrete expression in RDFS or OWL. This is why, I think, there remains a puzzling gap between RDF resources which are instances of CRM classes and their literal values which must be expressed using primitive RDF data types. The point of rdf:value, as I understand it, is to fill in gaps like these. On 22 February 2018 at 02:04, Carlisle, Philip <philip.carli...@historicengland.org.uk<mailto:philip.carli...@historicengland.org.uk>> wrote: Dear all, Naïve question. Is there any reason why P90 has value could not/should not change its domain and range from: Domain: Range E54 Dimension E60 Number to E1 CRM Entity E59 Primitive Value I look forward to you answers Phil Phil Carlisle Knowledge Organization Specialist Listing Group, Historic England Direct Dial: +44 (0)1793 414824<tel:+44%201793%20414824> http://thesaurus.historicengland.org.uk/ http://www.heritagedata.org/blog/ Listing Information Services fosters an environment where colleagues are valued for their skills and knowledge, and where communication, customer focus and working in partnership are at the heart of everything we do. [Historic England Logo]<http://www.historicengland.org.uk/> We help people understand, enjoy and value the historic environment, and protect it for the future. Historic England<https://www.historicengland.org.uk> is a public body, and we champion everyone’s heritage, across England. Follow us: Facebook<https://www.facebook.com/HistoricEngland> | Twitter<https://twitter.com/HistoricEngland> | Instagram<https://www.instagram.com/historicengland/> Sign up to our newsletter<http://webmail.historicenglandservices.org.uk/k/Historic-England/newsletter_sign_up> Help us create a list of the 100 places which tell England's remarkable story and its impact on the world. A History of England in 100 Places<https://historicengland.org.uk/100places> sponsored by Ecclesiastical<http://www.ecclesiastical.com/fororganisations/insurance/heritageinsurance/100-places/index.aspx>. We have moved! Our new London office is at 4th Floor, Cannon Bridge House, 25 Dowgate Hill, London, EC4R 2YA. This e-mail (and any attachments) is confidential and may contain personal views which are not the views of Historic England unless specifically stated. If you have received it in error, please delete it from your system and notify the sender immediately. Do not use, copy or disclose the information in any way nor act in reliance on it. Any information sent to Historic England may become publicly available. _______________________________________________ Crm-sig mailing list Crm-sig@ics.forth.gr<mailto:Crm-sig@ics.forth.gr> http://lists.ics.forth.gr/mailman/listinfo/crm-sig -- Conal Tuohy http://conaltuohy.com/ @conal_tuohy +61-466-324297 _______________________________________________ Crm-sig mailing list Crm-sig@ics.forth.gr<mailto:Crm-sig@ics.forth.gr> http://lists.ics.forth.gr/mailman/listinfo/crm-sig -- -------------------------------------------------------------- Dr. Martin Doerr | Vox:+30(2810)391625 | Research Director | Fax:+30(2810)391638 | | Email: mar...@ics.forth.gr<mailto:mar...@ics.forth.gr> | | Center for Cultural Informatics | Information Systems Laboratory | Institute of Computer Science | Foundation for Research and Technology - Hellas (FORTH) | | N.Plastira 100, Vassilika Vouton, | GR70013 Heraklion,Crete,Greece | | Web-site: http://www.ics.forth.gr/isl | --------------------------------------------------------------
