Análise do grau de maturidade das empresas quanto à gestão de produção: uma aplicação do modelo de escala gradual no construto simap

Abstract

This study aims the implementation of Rating Scale Model of Item Theory Response in a construct of Productive Arrangements Monitoring System (SIMAP) to evaluate the questionnaire itself and the respondent companies. It was presented literature reviews on benchmarking, SIMAP, response item theory and construct validation. Regarding the methodology, this research it is characterized as quantitative, exploratory, bibliographic and case study. It was considered a sample of 299 companies that answered the questionnaire of 46 indicators, but for this study were considered only those in the production management system: setup time; planning and production control; capability studies; quality costs; process control; defects in parts per million; maintenance; Just in Time philosophy and tools; supplier development and average age of equipment. It was verified, after analysis of Cronbach`s alpha, that the construct has good reliability, despite accentuate the possible need to remove the item average age of equipment after Pearson correlation. The parameters of discrimination and difficulty of each indicator and the companies’ degree of maturity, both individually and by chain were estimated. There was the superiority of oil and gas companies’ maturity and the inferiority of civil construction. The maturity scale is measured between -3.0 and 3.0, where 70.23% of companies are concentrated between the maturity levels -1.0 and 1.0, while only 14.76% have ability above 1,0, which makes clear the difficulty of full implementation of the items. It is confirmed with the analysis of Item Characteristic Curves the need to remove the above indicator due to its low discrimination. From the construction of the ability scale, it was possible to identify and characterize two anchor levels: 2.0 and 3.0.