Create Mega-shapes data model #142
Description
In order to create the different conversions, it would interesting to create a shapes data model that captues the expressivity of all the other data models. As an example of some features that are covered by some technologies and not others:
- It should support meta-information about the schema (ShEx in ShExR but not in ShExC, and SHACL)
- It should allow property paths in the predicates (SHACL)
- It could allow comparisons between values (SHACL)
- It could allow recursion (ShEx)
- It could allow annotations like examples for values (rdf-config)
- It could allow default values in value sets (rdf-config)
- ...
The goal of this language would be to unify the conversions, so instead of one-to-one conversions, we could do conversions from some technology to MegaShape and from MegaShape to another technology, increasing the scalability of the conversions.