A pizzeria utilizes the following procedure to fulfill customer pizza orders: Two pizza makers handle dough preparation, topping addition, loading and unloading pizzas from an oven capable of holding up to 5 pizzas simultaneously. Pizzas can be loaded or unloaded at any time without disrupting the baking process for other pizzas already inside. These loading and unloading tasks are performed swiftly and intermittently alongside other pizza-making activities. Additionally, a dedicated packer is responsible for packing pizzas that have cooled for a minimum of 2 minutes. Prepare the dough in 4min, add topings in 1min, bake in oven 5min, cool at least 2min, pack in 3min