The purpose of the research is to demonstrate that there is a correlation between the study variables, determining that the engineering of quality management by processes depends on the continuous improvement, in a directly proportional way, in the production systems in complex organizations. The independent variable is based on the theory of restrictions representing continuous improvement and the dependent variable ISO quality standards: 9001 as Quality Management Engineering by Processes. It was carried out in five companies and the research method is inductive, quasi-experimental, empirical with a qualitative approach, which leads to the analysis and review of the literature and scientific articles. A representative sample was obtained from the population to be able to inference. The hypothesis to be tested is determined and parametric and non-parametric statistics are used according to the study variables, using SPSS programs for the use of these statistical tests. A document measurement instrument was designed and elaborated, testing its validity and reliability to obtain the data and be able to analyze them. The results of the statistical tables determined that there is a correlation between the study variables in the production systems of complex business organizations.