I don't follow. Isn't schema the same as representation? It's the equivalent of the DTD for an XML document. To be super concrete, I can't read a file containi

I don't follow. Isn't schema the same as representation? It's the equivalent of the DTD for an XML document. To be super concrete, I can't read a file containing protos without knowing their type, what fields they contain, etc. I can however read JSON just fine without knowing the precise schema being encoded.