"An internally coherent and theoretically grounded collection of models, methodologies, methods, and tools used to learn about the world and to act in it"(K. BAUSCH-Glossary of terms- personal communication)
BAUSCH adds: "It is a flexible and creative way of engaging in a disciplinary inquiry
�However the cybernetic and systemic "tools" are mostly transdisciplinarian because they are in fact "meta-tools" i.e. they can be applied in a similar way in many disciplines."
As an example feedback as a tool (or a model, for that) is a very general mechanism that can be recognized and used in all nonlinear situations, wherein a cyclical loop exist in the form cause-effect-cause.