EN
The article presents three concepts of collective decision making process: the so called 'popular one', the idea of deliberation according to Rawls, Gutmann i Thompson and the idea of discourse by Habermas. They are discussed in the context of interdisciplinary discourse analysis with particular reference to the theory of intentional communication by H.Paul Grice. Observations of debates in the real world indicate that quite often the 'popular' debate is not enough to reach a meaningful consensus. The deliberation deepens the mutual understanding and enhances the chances of finding acceptable solutions to concrete problems. In a successful deliberation, in addition to basic requirements of equality, freedom of participation and cooperative attitude, the participants should: (1) articulate their statements in terms convincing to the opponents, (2) make their argumentation publicly known and (3) consider all the decisions in terms of public good and implementation of basic individual rights. However, only the discourse, as it is presented by Habermas, creates the opportunities of moral conflicts resolution and changes of world views through the transformation of basic convictions and believes of the participants. The meaningful participation in this kind of discourse requires, among others, the temporary suspension of individual rightness claims and suspension of validity of any norms and evaluations.