Throughput, in business, is the amount of a product or service that a company can produce and deliver to a client within a specified period of time. The term is often used in the context of a company's rate of production or the speed at which something is processed.
The three unities are: unity of action: a tragedy should have one principal action. unity of time: the action in a tragedy should occur over a period of no more than 24 hours. unity of place: a tragedy should exist in a single physical location.