Six Sigma and improvement of the logistics process in the construction retail industry

Authors

Gutiérrez Ascón, Jaime Eduardo

Samanamud Natividad, Ruben Orlando

Amado Sotelo, Julio Fabián

Rodriguez Alegre, Lino Rolando

Arias Pittman, José Augusto

Barrera Loza, Ana Doris Magdalena

Palomino Tiznado, Máximo Darío

Abstract

Objective: Apply Six Sigma to improve the logistics process of products in the construction retail industry. Material and methods: The research design is pre-experimental with two observations of applied type, longitudinal, explanatory and quantitative. The population of objects was conformed by the porcelain and ceramic line. Observation cards, historical database and simulation with Crystal Ball software were applied. Results: Six Sigma reduced the process time from 788.49 seconds to 616.08 seconds, which was simulated 10 000 times to determine the sigma level (σ), registering the increase from 1.96 a 3.99. The forecast was made with ARIMA (1,0,0) to project the demand and apply the EOQ model, taking into account that The coefficient of variation of the demand was 0.07548. The order quantity and the reorder point, after simulating 15 situations of 10 000 times with OptQuest, were 5800 and 600 units respectively, thus registering a decrease in S/. 29 144 to S/ 26 460. The new distribution of the warehouse was improved by reducing displacements from 41.05 to 31.78 meters. Deliveries improved errors from 2.36 to 0.97 per order. Conclusion: The application of Six Sigma improves the logistics process of products in the construction retail industry.