Collect the relevant information, which consists of The duration of the operation, the time came to the factory, which has been loaded, loading time, To find out the wait time that happens.
Collection of data related facilities. During the operation, the time at the factory, the goods have been loaded, loading time, to find the time waiting to happen.
Collect related information, which includes a period of operation, the time in the factory, when be loaded goods, loading. Time, to the waiting time occurred.