Introduction to Linked Data
Sandro Hawke, W3C sandro@hawke.org @sandhawke
http://www.w3.org/2010/Talks/0608-linked-data June 8 2010, Cambridge Semantic Web Gathering
Outline

Context Motivation Prerequisites (Web, RDF) Using Live URIs as Identifiers Related and Future Work Questions
Technology Context
The Flow of Data
Linked Data: Why

So apps can find data … without centralization:

No central bottlenecks No central point-of-failure No central policies (privacy security) No need for permission

Use existing social structures Use existing (Web) technology structures
Anyone Can Say Anything

Whatever your business, projects, thoughts … and others can find/filter/analyze/reuse
http://www.flickr.com/photos/dalbera/2738451853/ http://www.flickr.com/photos/conlawprof/520329163
So How Do We Do It
Be Linkable
(Good Website Design)
Show Your Triples
(Export as RDF)
Use Live URIs
(The Heart of Linked Data)
#1: Be Linkable

Put your information on your website Invest in content management Consider offering public APIs Use Good URLs
Readable, Unambiguous, … even in 10 years

Support caching Support content negotiation Publish your URL Survival Plan
#2: Show Your Triples
Think of your data as RDF triples:

For each item of interest For each question about that item Supply the answer (if you have it) Governor Deval Patrick Nickname "Bay State" Capital Boston
About Massachusetts:

And Boston Does it have a nickname ...
Seen as a "Graph"
In Turtle (N3)

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