Principle of Scheduling
First Principle optimum Task Size: scheduling tens to achieve its maximum efficient task sizes are small and all tasks are of the same order of magnitude.
Second Principle of the optimum production plan: Scheduling tends to achieve its maximum efficient when the work is planned so that it imposes an equal /even load on all the plant.
Third Principle of the optimum operation Sequence: Scheduling tends to achieve its maximum efficiency when the work is planned so that work centres are normally used in the same sequence.