Doing a bit of research with regard to data schema and serializaton, preferably without being JSON_centric.
| Name | Defining Structure/Type | Structure is Extensible | Data Serialization | Data Validation | Human-Friendly |
|---|---|---|---|---|---|
| XML/XBRL | YES | YES | YES | ||
| Protocol Buffers | YES | ? | YES | YES | YES |
| JSON | YES | ||||
| Avro | YES | YES? | YES | YES | sort of |
| CSV | YES | ||||
| Kwalify (YAML+JSON) | YES | YES | YES | YES | YES |
| XML/NEIM | YES | YES | n? | YES | YES |
| OKFN/CSV + JSON | YES | ? | n | n | YES |