2019-04-102019-04-102018-12AMARAL, Tatiana Gondim do; OKA, Letícia Guimarães; CAMARGO FILHO, Carlos Augusto Bouhid de. Análise matemática para diagnóstico do grau de implementação da construção enxuta. Revista Eletrônica de Engenharia Civil, Goiânia, v. 14, n. 2, p. 120-134, jul./dez. 2018. Disponível em: <https://www.revistas.ufg.br/reec/article/view/49629/pdf>.e- 12http://repositorio.bc.ufg.br/handle/ri/17392The Lean Construction is a filosofy which is growing in the diverse communication’s means in Brazil and around the world. Although most of the construction companies are in the initial stage of these practices and tools implementation, the development of efficient mechanisms to evaluate this process is vital, such as the Lean Construction Assessment Tool (LCAT). This evaluation method is utilized in this research to evaluate the lean implementation stage in six construction companies in Goiânia. From the obtained data, the lean implementation stage was calculated using arithmetic averages, weighted averages and averages based in the Fuzzy Inference System. This work has as main goal to analyze the results from the Lean Diagnosis obtained using the tool and evaluate the potentialities that each average owns. It’s also a goal to evaluate the management process in the studied companies, highlighting failures in the system and how they can be improved. The averages obtained present small variations, such as speed of procurement, other variables interferences and the specialists’ analysis, being possible to conclude about different potentialities in each’s use. From this study, it was possible to establish a diagnosis based in the interaction between the academic and professional environment.porAcesso AbertoLean constructionMétodos de avaliaçãoGrau de implementaçãoResultados matemáticosSistema de inferência fuzzyLean constructionEvaluation methodsImplementation stageMathematic resultsFuzzy inference systemArtigo10.5216/reec.v14i2.49629