Frederick Winslow Taylor , the father of scientific management , introduced what are now called standardization and best practice deployment. In Principles of Scientific Management , (1911), Taylor said: "And whenever a workman proposes an improvement, it should be the policy of the management to make a careful analysis of the new method, and if necessary conduct a series of experiments to determine accurately the relative merit of the new suggestion and of the old standard. And whenever the new method is found to be markedly superior to the old, it should be adopted as the standard for the whole establishment."
Of the two, lateral dynamics has proven to be the more complicated, requiring three-dimensional , multibody dynamic analysis with at least two generalized coordinates to analyze. At a minimum, two coupled, second-order differential equations are required to capture the principal motions.  Exact solutions are not possible, and numerical methods must be used instead.  Competing theories of how bikes balance can still be found in print and online. On the other hand, as shown in later sections, much longitudinal dynamic analysis can be accomplished simply with planar kinetics and just one coordinate.