projet préliminaire=preliminary project which means
1.preceding and leading up to the main part, matter, or business;introductory; preparatory:preliminary examinations.noun, plural preliminaries.2.something preliminary, as an introductory or preparatory step,measure, contest, etc.:He passed the preliminary and went on to the finals.3.a boxing match or other athletic contest that takes place before themain event on the program:A preliminary was fought at 8:00.4.a preliminary examination, as of a candidate for an academic degree.