Should CDDL be used as the Data Definition Language to formalize the constraints of the Abstract Data Model?

[jonnycrunch]

How can we best provide unambiguous definitions and constraints on the Abstract Data Model such that it can be best used by implementers?

I have worked hard building out all aspects of the DID spec and found that CDDL (RFC 8610) is the most robust to solve this and I would like to propose it to concretely constrain the Abstract Data Model.

Some debate that should be discussed include:

• is CDDL sufficiently expressive to cover all representations ( CBOR, JSON, JSON-LD, YAML)?
• or should the CDDL be used for per-representation/per-MIME type basis?

[jonnycrunch]

Resolved vie #138. CDDL is for JSON and CBOR, not ADM.