Quote Originally Posted by psevdonim View Post
Basically it is quite obvious. A typing expert must have good understanding of information elements and the model, have practical experience of identifying information elements in interaction (speech is most convenient but it can be also behavior) and in identifying model's functions by their parameters (dimension, vital/mental track etc). There are some indicators in speech which help one to see the functions' "signatures". For example, this article sheds some light on the subject.
And who or how is an expert constituted / all of that is determined? Subjectively? You have to choose to accept it? How do you settle arguments on expertise?