Yes, but xmlschema allows for a decent platform-agnostic system for defining objects. The problem is that most tools default (or even force) to "sequence" inst

Yes, but xmlschema allows for a decent platform-agnostic system for defining objects. The problem is that most tools default (or even force) to "sequence" instead of "all". With "all" you get object-ish XML behavior. There is no well-adopted analog to xmlschema for json.