The FRODO RDFSViz Tool
The FRODO RDFSViz tool provides a
visualization service for ontologies
It uses the Java RDF API
implementation (Sergey Melnik), the Xerces XML parser from
graph drawing program (AT&T and Lucent Bell Labs).
The tool creates class diagrams where classes become nodes and
rdfs:subClassOf relations become edges.
Optionally, properties with
ranges are also visualized as (labeled)
edges. Properties (incl.
can be displayed as node contents.
If you want to visualize general
RDF models, you may use the RDF
graph visualization tools
W3C RDF Validation Service
(W3C) or Rudolf
RDFViz (Dan Brickley).
DAML+OIL ontologies can be visualized
with the DAML+OIL servlet which is part of
A tool similar to RDFSViz is the
plugin for the knowledge acqusition tool
(which is also an RDF[S] editor).
OntoViz is much more configurable than RDFSViz and allows,
e.g., the selection of sub-ontologies to be visualized.
The FRODO RDFSViz tool was implemented in the FRODO project
(A Framework for Distributed Organizational Memories)
at DFKI Kaiserslautern
(German Research Center for Artificial Intelligence).
News and Status
2001-08-17 optional display of
(class and literal-valued) properties as node contents
2001-05-28 aspect ratio added
2000-09-22 first binary
& source distribution
2000-09-21 RDFS namespace can be selected
2000-09-15 some minor namespace problems
2000-09-13 initial version made
available as online demo (Java servlet)
Enter a URL of your RDF Schema file:
Bugs and Improvements
If you find any bugs or have ideas for improvements, please let us know:
and Andreas Lauer
- precise error messages are missing
- huge images are not displayed by most browsers
- you can still download them with the context
menu (right mouse button)
- the dot program sometimes crashes
Old RDFSViz binaries