Designing training is as much of an art as it is a science. However, that doesn’t mean we should abandon the act of trying to figure out how long it takes to develop an hour of training. Scientific measures and standards can be applied at least as rough guidelines. With some type of standard, it becomes possible to gain a general idea of how much time a training project might take. While many may argue about using “one hour of training” as a measuring stick because of the difficulty of determining exactly what one hour means, it is a common term and has some traction with managers trying to plan resources. It’s not perfect, but it is a way of making comparisons.