Considerações sobre a utilização de gráficos (X e R) com regra adicional de decisão para o monitoramento de processos univariados

• Autor(a) principal: Suzumura, Lucas Outa [UNESP]
• Data de Publicação: 2016
• Tipo de documento: Trabalho de conclusão de curso
• Idioma: por
• Título da fonte: Repositório Institucional da UNESP
• Texto Completo: http://hdl.handle.net/11449/155364; http://www.athena.biblioteca.unesp.br/exlibris/bd/capelo/2017-04-25/000882304.pdf
• topic: Processo decisório por critério múltiplo; Estatistica - Metodos graficos; Metodos de simulação; FORTRAN (Linguagem de programação de computador); Multiple criteria decision making

The Shewhart control chart is a statistical process monitoring tool, and many strategies are currently being proposed to improve the control charts efficiency, such as the new decision rules deployment. In this work, through an exploratory and experimental research, the objective was the study of different additional rules (synthetic, side sensitive and SS Synthetic) under different perturbations in the process and sample size, both in the average (X) and in the variability (R) of univariate processes. The NMA values were collected through simulations in a computer software, the FORTRAN language. The results indicated the efficiency of the control charts under the action of the additional rules, with more detailed study of each rule in chart and analyzes of the action in the chart R and in the two graphs combined; comparing all the performances and identifying the best combination of parameters to obtain control charts with a greater power of detection and more accurate results