Talk:Business Process Modeling Language

I think this statement is wrong:

Business Process Modeling Language (BPML) is a meta-language for the modeling of business processes, just as XML is a meta-language for the modeling of business data

A meta-language is a language to describe languages. My understanding is that BPML is a language to describe business processes, not a language to define languages for describing business processes. Am I wrong?

Furthermore, XML is a language to describe data (in general, not just business data,) and it is not a meta-language per-se (although it could be used that way, but that's not what it is intended for.)