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... a class of communicative events, the members of which share
some set of communicative purposes. These purposes are
recognized by the expert members of the parent discourse
community, and thereby constitute the rationale for the genre.
This rationale shapes the schematic structure of the discourse
and influences and constrains choice of content and style.
Communicative purpose is both a privileged criterion and one
that operates to keep the scope of a genre as here conceived
narrowly focused on comparable rhetorical action. In addition
to purpose, exemplars of a genre exhibit various patterns of
similarity in terms of structure, style, content and intended
audience. If all high probability expectations are realized, the
exemplar will be viewed as prototypical by the parent discourse
community. The genre names inherited and produced by
discourse communities are imported by others constitute
valuable ethnographic communication, but typically need
further validation. (Swales, 1990: 58)
Thus, in Swales´ view, a genre consists of a class of communicative events which are
determined by specific communicative purposes. The former comprises the
discourse itself, the participants involved and the environment in which the
discourse is produced. The latter is related to the role of the discourse i.e., using
language to get something done. As Tribble (1996:23) asserts, language exists to
fulfill certain functions. Communicative purposes are, therefore, manifested
linguistically by means of lexical items and grammatical structures.
Focusing on texts from a genre-oriented perspective, according to Swales (op.
cit.), would seem to involve the application of various categories for the analysis of
written text or discourse, in order to determine those elements which are common
to the internal organization i.e., the generic structure of the discourse (Tribble,
1996:32). Bhatia (1993:16) subscribes to Swales’ (ibid) views when he argues that
each genre is an instance of a successful achievement of a specific communicative purpose
using conventionalized knowledge of linguistic and discoursive resources. Within this