If we consider how theoretical operations belonging to the methodological inventory of linguistics are carried out (i. e. the way linguistic theories are set up), three main criteria suggest themselves for classifying them: (1) Both, nature and type of the aims of the scientific knowledge applied which allow to specify the epistemological interests as well as the theoretical impact constituting the purpose of linguistic operations; (2) the nature of the intellectual procedures in connection with which a set of intersubjectively acceptable operations should guarantee that current postulates of...