Purpose This paper aims to investigate Lean Six Sigma (LSS) in the Brazilian context, seeking to identify its main characteristics and opportunities for future research. Design/methodology/approach This study focuses on a literature review in the area of production engineering and operations management, where 104 relevant scientific publications were identified. Findings The results show that the most important critical success factor for integrating LSS in Brazil is top management support and commitment. LSS integration occurs predominantly in large industrial companies, being incipient in small and medium-sized enterprises. In general, there is no structured way of applying LSS. A standard framework for LSS is still lacking. Research limitations/implications This study is limited to a sample that only comprises Brazilian scientific studies. Practical implications Professionals and practitioners can understand the evolution of LSS through practical applications and the main LSS tools used in both the industrial and services sectors. It also points out the critical success factor for the implementation of LSS. The study highlights several roadmaps for LSS implementation adopted by large and modern Brazilian automotive industries based on a robust technological base. This study also contributes to expanding the evidence base of LSS application, both in Brazil and in other countries. Originality/value Some suggestions are proposed to clarify the structure and complexity of integrated implementation of LP and SS as well as expand the LSS application in small and medium-sized enterprises. This study is the first to discuss the current situation of LSS in Brazil and provide suggestions to expand LSS in the country. Comparisons of Brazilian LSS literature review with researches of others countries are also presented.

The water supply in terms of quantity and quality is a growing concern. Water quality has been compromised since the spring, because of the discharge of effluents, which requires investment in treatment plants to ensure the quality of the water supplied. The water leaving treatment plants to the distribution network must achieve the specification for some parameters set in legislation. But in addition to meeting these limits, to maintain the quality of the water supply it is also important to assess the variability. In this sense, statistical control charts play an important role. The main objective of this paper is to analyze the application of statistical control charts for turbidity and residual chlorine, two indicators of the quality of drinking water. The data, both turbidity and residual chlorine, were autocorrelated, and it was necessary to apply specific techniques to solve this problem. Shewhart control charts for individual measures with extended limits extended and applied to residuals from an ARIMA model, were analyzed in this study. These proposals were adequate to monitor these parameters.

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Apesar da ampla literatura existente sobre Manufatura Enxuta (ME), pouco esforço tem sido dedicado a sintetizar o estado da arte sobre métodos que avaliam sua implantação. Nesse sentido, este artigo tem como objetivo apresentar uma revisão da literatura sobre métodos científicos de avaliação da implantação da ME, buscando identificar suas principais características. Foram identificados 48 artigos relacionados ao tema, no período de 1996 a agosto de 2012. Depois da revisão, as publicações foram classificadas, utilizando os seguintes parâmetros de caracterização: tipo de abordagem metodológica; foco de avaliação; forma de apresentação do diagnóstico; dinâmica de aplicação do diagnóstico de avaliação; práticas clássicas da ME avaliadas; entre outros parâmetros complementares. A principal contribuição desta pesquisa concentra-se em condensar em um único material, uma visão geral sobre os métodos de avaliação da ME para que pesquisadores e profissionais da área selecionem o método que melhor se adapte à realidade de determinada empresa, ou o que ofereça a melhor perspectiva de como se apresenta a implantação da ME.