![Linked Data – the long and winding road,[object Object],Andy Powell, Eduserv,[object Object],@andypowe11,[object Object],Linked Data – the future of knowledge organisation on the Web, London,[object Object],14 Sept 2010,[object Object]](https://image.slidesharecdn.com/isko-uk-linked-data-2010-09-100913093721-phpapp02/75/linked-data-the-long-and-winding-road-1-2048.jpg?cb=1670001152)
![today’s topic...,[object Object],Linked Data: the future of knowledge organisation on the Web,[object Object],...pre-supposes that Linked Data is the future of the Web,[object Object],and for that to be true, we have to understand the challenges we face in making it a reality,[object Object]](https://image.slidesharecdn.com/isko-uk-linked-data-2010-09-100913093721-phpapp02/75/linked-data-the-long-and-winding-road-2-2048.jpg?cb=1670001152)
![a story,[object Object],about the history of the Dublin Core initiative,[object Object],and what that history tells us about the challenges for Linked Data,[object Object],it’s a largely non-technical story (superficial?),[object Object]](https://image.slidesharecdn.com/isko-uk-linked-data-2010-09-100913093721-phpapp02/75/linked-data-the-long-and-winding-road-3-2048.jpg?cb=1670001152)
![about me...,[object Object],long association with both Dublin Core,[object Object],and RDF,[object Object],more immersed in former than latter,[object Object],member of both the DC Usage Board and the Advisory Board,[object Object],previous chair of the,[object Object],DC Architecture WG,[object Object],lead author of the original,[object Object],DCMI Abstract Model,[object Object]](https://image.slidesharecdn.com/isko-uk-linked-data-2010-09-100913093721-phpapp02/75/linked-data-the-long-and-winding-road-4-2048.jpg?cb=1670001152)
![15,[object Object],What is DC?,[object Object],Dublin Core (DC) is a metadata standard that provides a vocabulary for describing the "core" attributes of resources, most often in the context of resource discovery on the Web,[object Object],[object Object]](https://image.slidesharecdn.com/isko-uk-linked-data-2010-09-100913093721-phpapp02/75/linked-data-the-long-and-winding-road-5-2048.jpg?cb=1670001152)
![declared using RDF/RDFS,[object Object]](https://image.slidesharecdn.com/isko-uk-linked-data-2010-09-100913093721-phpapp02/75/linked-data-the-long-and-winding-road-6-2048.jpg?cb=1670001152)
![what impact has that had on DC?,[object Object]](https://image.slidesharecdn.com/isko-uk-linked-data-2010-09-100913093721-phpapp02/75/linked-data-the-long-and-winding-road-7-2048.jpg?cb=1670001152)
![a record centric approach,[object Object],shipping records from A to B,[object Object],and the ‘record’ as mechanism for tracking provenance ,[object Object]](https://image.slidesharecdn.com/isko-uk-linked-data-2010-09-100913093721-phpapp02/75/linked-data-the-long-and-winding-road-8-2048.jpg?cb=1670001152)
![[object Object]](https://image.slidesharecdn.com/isko-uk-linked-data-2010-09-100913093721-phpapp02/75/linked-data-the-long-and-winding-road-9-2048.jpg?cb=1670001152)
![15 ‘fuzzy buckets’a hang-over from days of library catalogue card – on which notes could be written?,[object Object]](https://image.slidesharecdn.com/isko-uk-linked-data-2010-09-100913093721-phpapp02/75/linked-data-the-long-and-winding-road-10-2048.jpg?cb=1670001152)
![flat-world modelling,[object Object],1:1 principle - the principle whereby related but conceptually different entities, for example a painting and a digital image of the painting, are described by separate metadata records,[object Object],c.f. use of dc:creator in practice,[object Object]](https://image.slidesharecdn.com/isko-uk-linked-data-2010-09-100913093721-phpapp02/75/linked-data-the-long-and-winding-road-11-2048.jpg?cb=1670001152)
![Strings vs. things,[object Object]](https://image.slidesharecdn.com/isko-uk-linked-data-2010-09-100913093721-phpapp02/75/linked-data-the-long-and-winding-road-12-2048.jpg?cb=1670001152)
![little abstraction of the model,[object Object],...from the ‘syntax’,[object Object],actually little shared understanding of the underlying model,[object Object]](https://image.slidesharecdn.com/isko-uk-linked-data-2010-09-100913093721-phpapp02/75/linked-data-the-long-and-winding-road-13-2048.jpg?cb=1670001152)
![addition of the model,[object Object],firstly using the analogy of a language ‘grammar’,[object Object],then thru the development of the ‘Dublin Core Abstract Model’,[object Object],then thru the addition of the ‘Application Profile’,[object Object],essentially the RDF model,[object Object]](https://image.slidesharecdn.com/isko-uk-linked-data-2010-09-100913093721-phpapp02/75/linked-data-the-long-and-winding-road-14-2048.jpg?cb=1670001152)
![what have been the challenges of bringing the RDF model to the DC community?,[object Object]](https://image.slidesharecdn.com/isko-uk-linked-data-2010-09-100913093721-phpapp02/75/linked-data-the-long-and-winding-road-15-2048.jpg?cb=1670001152)
![Selling an ‘open world’ view...,[object Object],selling an open-world view,[object Object]](https://image.slidesharecdn.com/isko-uk-linked-data-2010-09-100913093721-phpapp02/75/linked-data-the-long-and-winding-road-16-2048.jpg?cb=1670001152)
![the ‘http’ URI problem,[object Object],the ‘http’ URI problem,[object Object]](https://image.slidesharecdn.com/isko-uk-linked-data-2010-09-100913093721-phpapp02/75/linked-data-the-long-and-winding-road-17-2048.jpg?cb=1670001152)
![modelling...,[object Object],modelling,[object Object]](https://image.slidesharecdn.com/isko-uk-linked-data-2010-09-100913093721-phpapp02/75/linked-data-the-long-and-winding-road-18-2048.jpg?cb=1670001152)
![http://blogs.ecs.soton.ac.uk/webteam/2010/09/02/the-modeler/,[object Object]](https://image.slidesharecdn.com/isko-uk-linked-data-2010-09-100913093721-phpapp02/75/linked-data-the-long-and-winding-road-19-2048.jpg?cb=1670001152)
![so...,[object Object],my contention is that if Linked Data has a role to play in the future of knowledge organisation,[object Object],then Linked Data must be successful on the Web,[object Object],and that means that RDF must be successful on the Web,[object Object]](https://image.slidesharecdn.com/isko-uk-linked-data-2010-09-100913093721-phpapp02/75/linked-data-the-long-and-winding-road-20-2048.jpg?cb=1670001152)
![DC brings a useful vocabulary of ‘core’ properties and classes,[object Object]](https://image.slidesharecdn.com/isko-uk-linked-data-2010-09-100913093721-phpapp02/75/linked-data-the-long-and-winding-road-21-2048.jpg?cb=1670001152)
![the history of DC helps us understand the challenges:,[object Object],[object Object]](https://image.slidesharecdn.com/isko-uk-linked-data-2010-09-100913093721-phpapp02/75/linked-data-the-long-and-winding-road-22-2048.jpg?cb=1670001152)
Linked data - the long and winding road
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A presentation at the ISKO UK One-day Workshop, Linked Data: the Future for Knowledge Organisation on the Web.
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Linked data - the long and winding road
- 23. understanding http URIs and how they can be managed
Editor's Notes
- I’ve invented a new Batman villain. His name is “The Modeller” and his scheme is to model Gotham city entirely accurately in a way that is of no practical value to anybody. He has an OWL which sits on his shoulder which has the power to absorb huge amounts of time and energy....Over the 3 issues there’s a running subplot about The Modeller's master weapon, the FRBR, which everyone knows is very very powerful but when the citizens of Gotham talk about it none of them can quite agree on exactly what it does....While unpopular with the fans, issue two, “Batman vs the Protégé“, will later be hailed as a Kafkaesque masterpiece. Batman descends further into madness as he realises that every moment he’s the Batman of that second in time, and each requires a URI, and every time he considers a plan of action, the theoretical Batmen in his imagination also require unique distinct identifiers which he must assign before continuing.