The purpose of this chapter is to contribute to the project management literature by introducing behavioural aspects of relationships in collaborative ICT projects. Specifically, it examines the role played by business and non-business actors in successful projects regarding urban mobility in emerging economies. To accomplish this, a case study was undertaken, based on the development of a solution for public transportation in the South of Brazil. The findings suggest that, besides technological know-how, the interplay between commitment, knowledge, and opportunity development seem to have a combined impact on project outcome. The result strengthens the idea that studies analysing project management should consider not only rational dimensions of the projects, such as cost, time, quality, and scope, but also the social dimension in terms of the relationships that partners develop during and after the project.