I have a RDF file and its RDFS and I need to view the ontology schema graphically. What I would like to see is a schema similar to the ER diagram.
Is there any graphical tool which shows the ontology structure in such a way?
Best regards
There are many visualizers for RDFS and/or OWL schemas. Many of them are available as plugins for editors such as Protege, NeOn toolkit or TopBraid Composer.
As an standalone tool you could try turtled: https://github.com/mhausenblas/turtled
For a more customizable graph generation you could try AR2DTool (https://github.com/idafensp/ar2dtool) (this is a personal project in which I'm currently working and it's still on beta).