All of the machines are assembled in a pre-planned order so that the product will flow. This is an example of motion studies. The engineers work all of the production out on paper before they actually build the factory to get the least amount of backtracking necessary. People are always looking to improve the way in which we do just about anything that we need or want. With the tools and technology we have today the way we work has become less manual labor and more button pushing type jobs.
Few people encourage using human labor to do work that can be done more efficiently by machinery.
One day, probably not for a long time, the need for human labor in industry will not be needed anymore. As of today some tasks are too complex to be mechanized and therefore must be manually preformed, and some occur so seldom that it is not economical. Other factors may affect the extent to which computerization should be used in a given situation factors such as quality, yield, material utilization, safety, availability of capitol, and the probable life of the product made. As you can see Motion Studies are useful in the industry. They can usually, if done properly cut back time, effort, and costs.