Several questions are arising in French vocational schools. These questions come from the different logics at work in these schools they mainly concern the pedagogical, economical, political and administrative fields. Our study aims at a better understanding of how vocational school teachers see the tensions resulting from these different logics. We have proposed a questionnaire to the vocational school teachers in the academy of Caen. We submitted the schools and their teaching staff to both open -ended and closed-ended questions. We have carried out a separate analysis of the collected data (257 answers) including an analysis of the answers resulting from the opened-ended questions. For this purpose we have used two application programs respectively named CHIC and ALCESTE. The article presented here is a critical and comparative analysis of the two types of answers collected.