I like the JSON diagram, since it supports a more "physical" object notation with fields and dots with values or references (from dots). As such it complements objects diagrams.
It would be great if they could somehow be combined, e.g. include json objects and be able to refer to them from objects or vice versa. For this to work it would be necessary and useful to have a header line in a json object, so they get identity and can have a descriptive "name", e.g.
object an-object
json "JSON 1" as a-json-object {
"field": #an-object
}
an-object --> a-json-object: "the json object"
The header in the JSON object could only be shown when there is a string name, not just an identifier.
