- From: Kingsley Idehen <kidehen@openlinksw.com>
- Date: Thu, 17 Jul 2008 17:49:41 -0400
- CC: "public-xg-rdb2rdf@w3.org" <public-xg-rdb2rdf@w3.org>
All, *Apologies if this is a duplicate, but I believe my first attempt didnt' make it through* Please read: http://www.semanticweb.com//article.php/3759631 This is the RDB to RDF value proposition in a nutshell (*note to the rdb2rdf list members*). For those of you who didn't attend Linked Data Planet, or even worse, couldn't make the 8.30am keynote, I covered the same issues albeit with Linked Data Demystification in mind [1]. When all is said and done, we are trying to create dereferencable data source names from existing data sources (RDBMS, XML, SOA, (X)HTML, other docs) using the time tested concept of "Data Access by Reference". This is what SQL CLIs such as ODBC, JDBC, OLE-DB, ADO.NET have, and continue to offer in the 'Closed World" realm of your typical enterprise. The trouble with these older approaches is that they aren't impervious to data access disruptions that arise due to heterogeneity along the following lines: 1. DBMS Engine (vendor and data model) 2. DBMS Schemas 3. Operating Systems 4. Network Toplogy 5. Network Transport Protocols 6. Inherent fear of Opennness Items 1-5 are addressed by simply using HTTP to construct Data Source Names (Identifiers aka URIs). Item 6 will ultimately be addressed by the proliferation of Linked Data oriented solutions that extol the virtues of Open (albeit policy controlled) Data Access; by crystallizing the opportunity costs of remaining pegged / locked into to 'Closed World" schemas. Links: 1. http://virtuoso.openlinksw.com/presentations/Creating_Deploying_Exploiting_Linked_Data2/Creating_Deploying_Exploiting_Linked_Data2.html - Linked Data Planet Keynote 2. http://zitgist.com/company/pr/pr20080717.html - UMBEL ontology, a critical piece of infrastructure for any Non RDF to RDF mapping (e.g. RDB to RDF) 3. http://zitgist.com/labs/linked_data.html - Enterprise Linked Data (LED) FAQ from Zitgist 4. http://events.linkeddata.org/ldow2008/papers/21-servant-linking-enterprise-data.pdf - François-Paul Servant's Linked Data Workshop presentation at WWW2008 -- Regards, Kingsley Idehen Weblog: http://www.openlinksw.com/blog/~kidehen President & CEO OpenLink Software Web: http://www.openlinksw.com -- Regards, Kingsley Idehen Weblog: http://www.openlinksw.com/blog/~kidehen President & CEO OpenLink Software Web: http://www.openlinksw.com
Received on Thursday, 17 July 2008 21:50:22 UTC