|Mike Bergman just published a really good blog post that describes Zitgist’s definition of Linked Data. Zitgist define Linked Data has:
Linked Data is a set of best practices for publishing and deploying instance and class data using the RDF data model, naming the data objects using uniform resource identifiers (URIs), and exposing the data for access via the HTTP protocol, while emphasizing data interconnections, interrelationships and context useful to both humans and machine agents.
Mike explains this definition in 15 steps. One thing he stressed, and that I want to emphasis too is: Linked Data != Linked Open Data. Linked Data is not necessarily “open” in the sense of Open Source software and the freeware movement. Linked Data is about what we defined above. Enterprises can privately exchange data with business partners and clients. Enterprises can even do linked data between divisions of the company. Linked Data can be open, but is not limited to. Linked Data can be freely published on the Web; but Linked Data can also be published over private networks for limited use.