Tim Berners Lee’s 4 Rules
1. Use URIs to denote things.
2. Use HTTP URIs so that these things can be referred to
and looked up ("dereferenced") by people and user
3. Provide useful information about the thing when its URI is
dereferenced, leveraging standards such
as RDF, SPARQL.
4. Include links to other related things (using their URIs)
when publishing data on the Web.
Publish data on the Web in any format (e.g., PDF, JPEG) accompanied
by an explicit Open License (expression of rights).
Publish structured data on the Web in a machine-readable format
(e.g., XML EXCEL).
Publish structured data on the Web in a documented, non-proprietary
data format (e.g., CSV, KML).
Publish structured data on the Web as RDF
(eg Turtle, RDFa, JSON-LD, SPARQL)
In your RDF, have the identifiers be links (URLs) to useful data
Semantic Web - Purpose
Find, Share, and Combine information more easily.
The semantic web is a vision of information that can be
readily interpreted by machines
Machines can perform more of the tedious work involved
in finding, combining, and acting upon information on the
Links to your data and search engine indices can increase
the visibility of your data
Structured data can be interlinked and become more
1. Linked Open Data
2. Open Data