Large groups decision for the Rio 2016 Olympic Games in the MUTIRÕ project

The historic decision to take the biggest sporting competition in the world to South America was announced by the International Olympic Committee in Copenhagen, Denmark and started several projects in the city of Rio de Janeiro, Brazil. The redevelopment of Praça Mauá Pier, one of a number of improvements planned for the city´s port is the first of a series of enhancements planned for the city in order to prepare it for the so called Rio 2016 event. This sequence of developments will be decided by a Local Committee and should be aided by many people eager to participate and actually collaborate in construction process. To support this process, this paper intends to use decision support systems that employ different approaches in supporting large groups in their problem and solution discussing, alternatives generation and group choosing process. This work presents the use of the LaSca system in the MUTIRÕ project, which explores the coordination in a Large Scale decision support system that sustains the argumentations which were produced by the discussion involving the members of the design team and aids them to achieve a final conclusion. The main task of this project is to help groups interested in the Rio 2016 success taking into account socioeconomics aspects.