I searched half the web and back without a definite result. So can anyone point me to a combination of a knowledge modelling system with editor where
- hyperedges/n-ary relationships can be modelled directly.
- vertices and edges can be explored, created and maintained graphically without coding (click, drag & label rather than SPARQL/Gremlin/Cypher queries).
- several non-IT experts can collaborate to model their domain of expertise (web-based, multi-user).
- both DB and editor can be installed without DIY coding from framework/library/API.
- licence is ideally OpenSource type.
I found HypergraphDB and webVOWL, but I could not find out whether and how they work together to model knowledge hypergraphs.
Thank you for any help/hint!