questa è la definione, poi magari si può trovare una forma espressiva più sintetica.

In philosophy of science, standard epistemic units include paradigms, research programs, models, hypotheses. But one might do better to concentrate on problems and questions as epistemic units. A question here is a specific empirical or conceptual interrogative, usually addressed within a single discipline; *a problem agenda is a list of multiple interrelated questions, which cannot be addressed if not in an interdisciplinary manner*.
http://rationallyspeaking.blogspot.com/2008/07/notes-from-al...