RDFS

I am Mayank, Final year undergraduate student at DA-IICT, India. Since I am relatively new to Drupal-7 RDF, I would really appreciate if you could help me out here.

I have created a custom content type for my project purpose. The RDF Schema for the vocacbulary seems to have registered properly with Drupal and in the Database Tables. However, the issue that I am facing is that the value constraints that I have set within the Schema are not having any effect on the RDF that is generated.

FOAF, DC, SIOC, SKOS are famous vocabularies commonly used in the Semantic Web. Many other custom vocabularies exist and are created everyday. Vocabularies play an important role in the Semantic Web as they enable interoperability across various RDF data sources, and are used by RDF publisher and consumers who refer to them in their data.