Hello All, We have some RDF files modeling medical information including desease, treatment, patient name, gender, age, etc. Information related to deseases and treatments are public while names and so other are private and should be visible only to authorized users. Both public and private information could be used in SPARQL queries, but actually retrieving the private fields should be restricted. How can this security issue taken into account in Virtuoso?
Another example is related to publications. Only subscribers should be able to actually retrieve the text of a publication; however everyone should be able to use those fields for querying and filter. For instance, retrieving authors for all those papers with "term X" in the "introduction" section should be possible for everyone whilst retrieving the corresponding text for the "introduction" section should be only available to subscribers. How can I achieve that with Virtuoso? or SPARQL? I appreciate any help in this regard, LJ