The results of the description must be sufficiently formal to allow an application to parsing, in particular through the realization of syntax analyzers.
It emphasizes the collection of facts, and thus the confrontation with the reality of language use, from a quantitative and a qualitative point of view.
The exclusive search for general rules of syntax, independent of the lexical material they handle, is denounced as a dead end.
Qualitatively: methodological precautions are applied to ensure good reproducibility of the observations, and in particular to guard against the risks associated with constructed examples.
It is at this price that syntaxico-semantic properties could be considered as defined with sufficient precision to make sense to compare them with the whole lexicon.
The American projects FrameNet and VerbNet show a relative convergence towards objectives close to those of Lexicon-grammar.