ABSTRACT
The Linking Open Data community project started in January 2007 at the World Wide Web Consortium (W3C). Its original aim was to identify existing open data sets and to publish them on the web as linked Resource Description Framework (RDF) documents. The chosen data sets were all open data, that is, data available under open license or factual data. * Choosing the concept of open data resulted in the creation of the Creative Commons licenses, which enables authors to explicitly state conditions for other stakeholders to reuse their work, as well as the Open Data Commons Public Domain Dedication and License (PDDL), which covers factual data that by definition cannot be copyrighted. Table 22.1 summarizes the terms of these licenses.
