Aplicação das ferramentas de melhoria Lean Six Sigma em um processo de concorrência para a contratação de serviços de transportes rodoviários de produtos acabados

Abstract

This study presents the application of Lean Six Sigma improvement tools in a Request for Quotation (RFQ) process for contracting road transportation services. The study was carried out at a multinational vehicle manufacturing company, in the Purchasing Logistics area. It involved contracting transportation services for trucks, buses and construction machinery for export to Latin American countries, domestic distribution and distribution to ports. The problem identified was the lack of standardization of the process for tenders carried out without a system, resulting in inefficiencies, errors and excessive use of resources in some stages. To solve this problem, different improvement tools were considered, and Lean Six Sigma tools were chosen, such as PDCA, Pareto Chart, 5W2H and Ishikawa, due to their utility in complex, high-impact processes. The objective of applying these tools was to standardize and optimize the stages of the bidding process, making it easier to start future bids and increasing the efficiency and accuracy of decision-making. The results include the creation of a quotation model that facilitates data consolidation and analysis, the unification of standard operating procedures (SOP) and the creation of automation for the analysis and visualization phase. The improvements implemented have resulted in a more productive and accurate process, significantly reducing the time and resources needed to carry out tenders. The application of the improvement tools in the evaluation stage resulted in a reduction of approximately 15% (50 hours) of the total resources initially allocated to the project.