  This paper describes a recently initiated research project aiming at
supporting development of computerised dialogue systems that handle breaches of
conversational norms such as the Gricean maxims, which describe how dialogue
participants ideally form their utterances in order to be informative,
relevant, brief, etc. Our approach is to model dialogue and norms with
co-operating distributed grammar systems (CDGSs), and to develop methods to
detect breaches and to handle them in dialogue systems for verbal human-robot
interaction.
