This commitment process that leads to full commitment may be incremental or revolutionary, depending on the resistance to change in particular. It is therefore important to distinguish several forms of commitment. Gaillard-Giordani (2004) addresses the question of commitment with in the context of the relation between investors and entrepreneurs. The perspective adopted is financial and the approach focuses mainly on the mutual commitment of the actors of the entrepreneurial process. The perspective developed by this author relies on the exchange of mutual and credible commitment; and these exchanges participate in the sense-making and realisation of the project. The types of commitment examined in this work are represented by process-specific knowledge and resources. While Bruyat considers commitment as an individual variable, it appears mainly in its collective dimension in Gaillard Giordani’s doctoral research. Both authors nevertheless concur on the importance they give to the issue of commitment.