Sounds kind of like the EAV relational data model: https://en.wikipedia.org/wiki/Entity%E2%80%93attribute%E2%80%93value_model https://en.wikipedia.org/wiki/Enti

Sounds kind of like the EAV relational data model: https://en.wikipedia.org/wiki/Entity%E2%80%93attribute%E2%80%93value_model https://en.wikipedia.org/wiki/Entity%E2%80%93attribute%E2%80....