According to Roger Fowler (1991: 70), transitivity is a 'fundamental and powerful semantic concept in Halliday' and the 'foundation of representation' (1991: 71).  In contrast to its syntactic definition, i.e., whether or not a verb takes a direct object, transitivity in Systemic Functional Grammar concerns what kind of action or process a verb designates, which participants (e.g. agent and patient) are encoded, how, and where they occur in the sentence.  Transitivity is of interest in CDA because it has 'the facility to analyse the same event in different ways' (Fowler 1991: 71). Transitivity choices therefore communicate ideology, reflect (and reproduce) a particular point of view.