Cause and Effect Tree Keynote charts graph on the basis of which it becomes possible to investigate and determine the main cause-effect relationships of factors and consequences in the problem or situation of interest, as well as to prevent the occurrence of undesirable factors and causes. Like other quality tools, Cause and Effect Tree Keynote charts are considered an excellent means of visualizing and organizing knowledge that simplifies the understanding and diagnosis of problems and processes. In most cases, the chart is used in the development of new products, identifying the factors that have the greatest effect on its quality, and the main reasons that give rise to specific consequences and are manageable.