The Harmonisation of Contract Law Within Ohada- Colloquium organised by the International Institute for the Unification of Private Law (UNIDROIT) and the Training and Research Department (UFR) of Legal and Political Science of the University of Ouagadougou in association with the Organisation for the Harmonisation of Business Law in Africa (OHADA), under the high patronage of the Ministry of Justice of Burina Faso and with the support of the Siss Agency for Development and Cooperation SCD, the Directorate for Development and Cooperation, G.D. of Luxembourg and the AISBL Fonds Scientifique Jean Bastin- Ouagadougou (Burkina Faso), 15-17 November 2007.