The data used in this study was obtained using a survey questionnaire filled by
Tunisian managers from the plastic transforming sector. This sector was chosen
because it reflects that of the Tunisian manufacturing sector, mainly by its wide
variability of quality management implementation levels. Also, it is a manageable
sector in terms of size of the study. First, a list of 133 Tunisian companies was defined
on the basis of the industrial and commercial guide of Tunisia, which includes all the
manufacturing industries.