The document discusses communicative competence, which is the ability to convey and interpret messages and negotiate meanings according to Chomsky. It also discusses the distinction in the 1970s between linguistic competence, which focused on language forms and structures, and communicative competence, which focused on function. Communicative language teaching aims to develop communicative competence in language learners. The document also discusses various frameworks that classify the different components of communicative competence, including those proposed by Canale and Swain, and Bachman.