Conférence des directeurs des écoles françaises d'ingénieurs (CDEFI) is French for "Conference of the Directors of French Engineering Schools"The CDEFI is a French national institution that represents all engineering institutions that are accredited by the Commission des titres d'ingénieur (CTI) to deliver the French Diplôme d'Ingénieur.The conference was originally an advisory body, established in 1976 and governed by Articles D.233-D.233-6 to 12 of the French Education Code, widely revised by Decree No.