Um framework integrativo para a avaliação de práticas lean e green

Abstract

The simultaneous implementation of lean and green practices requires adequate methods to evaluate the contribution and the effect of both paradigms on organizational performance. Thus, the objective of this study is to develop an integrative framework to evaluate the impact of lean and green practices on organizational performance prioritizing improvements in the system. Thus, this research used a case study as a source of data collection, through interviews and questionnaire application with the managers of a company that applies lean and green practices. The analytic network process (ANP) was used as the main technique to obtain the relative weights of the framework elements. After applying the ANP, it was possible to identify that the practices that have the greatest impact on performance are the practices of the environmental management system (EMS), 3R (reduction, reuse, and recycling), 5S and the kaizen. Therefore, these practices must be prioritized by the company to achieve a better organizational performance, since they are the ones with a major contribution to the company's operational and environmental performance. The evaluation of lean and green systems in an integrated way was conducted through the lean-green index, allowing to identify the impact of each paradigm on the organizational performance. The results of the index showed that the green paradigm has a greater impact on the performance, with a weight of 14.3%, and that the integrated lean and green systems have a 23% impact on organizational performance. Through a sensitivity analysis, it was verified that the proposed framework allows the evaluation of lean and green systems continuously since it is possible to change the weights assigned during the comparisons, facilitated by the software SuperDecisions. It is concluded, therefore, that the framework proposed in this study allows the evaluation of lean and green practices in manufacturing organizations, being able to adapt to the reality of each company. The research contributes to a valid theoretical framework, which presents a generalization potential from the same evaluation structure.