Making the Conceptual Layer Real via HTTP based Linked Data
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A presentation that addresses pros and cons associated with approaches to making concrete conceptual models real. It covers HTTP based Linked Data and RDF data model as new mechanism for conceptual model oriented data access and integration.
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Making the Conceptual Layer Real via HTTP based Linked Data
- 16. RDF Conceptual Model – Artist / Records / Tracks © 2008 OpenLink Software, All rights reserved
- 20. Linked Data Model © 2008 OpenLink Software, All rights reserved Changes the focus from linked documents to linked entities The document as a data container becomes less relevant
- 21. Hyperdata Links Between Data Items © 2008 OpenLink Software, All rights reserved
- 24. Linked Data – Data Aggregation © 2008 OpenLink Software, All rights reserved
- 29. © 2008 OpenLink Software, All rights reserved Northwind Demo Database: RDF View Definition Extract prefix northwind: <http://www.openlinksw.com/schemas/northwind#> … create iri class northwind:Customer <http://^{URIQADefaultHost}^/Northwind/Customer/%U#this> (in customer_id varchar not null) … alter quad storage virtrdf:DefaultQuadStorage … from Demo.demo.Customers as customers from Demo.demo.Orders as orders … { Demo.demo.Customers Northwind RDF View Definition create virtrdf:NorthwindDemo as graph iri (“http://^{URIQADefaultHost}^/Northwind”) { … northwind:Customer(customers.CustomerID) a foaf:Organization as virtrdf:Customer-CustomerID ; northwind:companyName customers.CompanyName as … ; … northwind:fax customers.Fax as virtrdf:Customer-fax . … } } northwind:Customer(orders.CustomerID) northwind:has_order northwind:Order(orders.OrderID) as virtrdf:Order-has_order . Customer ID Company Name Contact Name Contact Title Address City Postal Code Country Phone Fax
- 30. Northwind Demo Database: Customer Table to RDF data item Mapping © 2008 OpenLink Software, All rights reserved Orders Table Customer ID Company Name Contact Name Contact Title Address City Postal Code Country Phone Fax ALFKI Alfreds Futterkiste Maria Anders Sales Represe-ntative Obere Str. 57 Berlin 12209 Germany 030 - 0074321 030 - 0076545 companyName contactName contactTitle address city PostalCode country phone fax Alfreds Futterkiste Maria Anders Sales Representative Obere Str. 57 Berlin 12209 Germany 030-0074321 030-0076545 … Order/10643#this has_order Order/10692#this … has_order Customer/ALFKI#this prefix <http://demo.openlinksw.com/Northwind/> has_customer has_customer Order ID Customer ID … 10643 ALFKI … 10692 ALFKI …
- 31. LinqToRdf + Virtuoso © 2008 OpenLink Software, All rights reserved
- 32. LinqToRdf to MusicBrainz - Conceptual Model Veneer © 2008 OpenLink Software, All rights reserved