Years ago, I used a tool called Ontopia to visualize the contents of a
topic map file. I was able to build up a list of statement triples, load
it into a server, and then navigate through the graph of relationships.
Today, I have a similar need to model a graph of related items (people,
places, events). My hope is that I could use RDF or JSON-LD to capture
these relationships and to allow new types of relationships to be added to
I have been exploring the visualization that is created in the JSON-LD
Playground: https://json-ld.org/playground/ and this has some features that
This tool creates a useful diagram if I keep the number of entities in my
diagram fairly small (under 25). I have encountered 2 challenges
- The visualization becomes unusable after about 50 entities have been
- If I reference an entity defined elsewhere in the graph, that
reference does not link to the definition of the entity.
I have a couple questions
- Is there a more robust tool for visualizing relationships found in
JSON-LD (or RDF)?
- Are you aware of a good tool for validating a JSON-LD (or RDF) file?
- Would you have any other suggestions?
Applications Programmer Analyst
Georgetown University Library Information Technology
425-298-5498 (Seattle, WA)