A method for manufacturing parts produced with a manufacturing device, based on simultaneous analysis of several different statistical indicators representative of a characteristic dimension of the parts, where: - each statistical indicator is calculated, with a calculation device, from an average μ and a standard deviation σ of the measured characteristic dimension over several parts, each statistical indicator being associated with a first reference value and a second reference value greater than the first reference value, defining: ∘ a validation set comprising the couples (μ;σ) where the statistical indicator is greater than or equal to the second reference value; ∘ a sanction set comprising the couples (μ;σ) where the statistical indicator is less than or equal to the first reference value; and ∘ a control set comprising the couples (μ;σ) where the statistical indicator is between the first reference value and the second reference value; - the following are defined: ∘ an overall validation set corresponding to a set-related combination of the different validation sets of each statistical indicator; ∘ an overall sanction set corresponding to a set-related combination of the different sanction sets of each statistical indicator; ∘ an overall control set comprising the couples (μ;σ) not included in the overall validation set and in the overall sanction set; and the method comprises the following automated steps consisting of: - taking a sample comprising several parts is taken from the parts produced by the manufacturing device, measuring, with a measuring device, the characteristic dimension of each part of the sample, and calculating, with the calculation device, an average μ m and a standard deviation σ m of the measured characteristic dimension for the sample taken; - determining, with a regulating device, which overall set among the overall validation set, the overall sanction set and the overall control set the couple comprising the average μ m and the standard deviation σ m of the measured characteristic dimension belongs to, and operating, with the regulating device, the manufacturing as a function of the overall set determined in this way. - each statistical indicator is calculated, with a calculation device, from an average μ and a standard deviation σ of the measured characteristic dimension over several parts, each statistical indicator being associated with a first reference value and a second reference value greater than the first reference value, defining: ∘ a validation set comprising the couples (μ;σ) where the statistical indicator is greater than or equal to the second reference value; ∘ a sanction set comprising the couples (μ;σ) where the statistical indicator is less than or equal to the first reference value; and ∘ a control set comprising the couples (μ;σ) where the statistical indicator is between the first reference value and the second reference value; ∘ a validation set comprising the couples (μ;σ) where the statistical indicator is greater than or equal to the second reference value; ∘ a sanction set comprising the couples (μ;σ) where the statistical indicator is less than or equal to the first reference value; and ∘ a control set comprising the couples (μ;σ) where the statistical indicator is between the first reference value and the second reference value; - the following are defined: ∘ an overall validation set corresponding to a set-related combination of the different validation sets of each statistical indicator; ∘ an overall sanction set corresponding to a set-related combination of the different sanction sets of each statistical indicator; ∘ an overall control set comprising the couples (μ;σ) not included in the overall validation set and in the overall sanction set; ∘ an overall validation set corresponding to a set-related combination of the different validation sets of each statistical indicator; ∘ an overall sanction set corresponding to a set-related combination of the different sanction sets of each statistical indicator; ∘ an overall control set comprising the couples (μ;σ) not included in the overall validation set and in the overall sanction set; - taking a sample comprising several parts is taken from the parts produced by the manufacturing device, measuring, with a measuring device, the characteristic dimension of each part of the sample, and calculating, with the calculation device, an average μ m and a standard deviation σ m of the measured characteristic dimension for the sample taken; - determining, with a regulating device, which overall set among the overall validation set, the overall sanction set and the overall control set the couple comprising the average μ m and the standard deviation σ m of the measured characteristic dimension belongs to, and operating, with the regulating device, the manufacturing as a function of the overall set determined in this way.