The original trading is that customers come into the camp, according to various locations and was able to buy things or the customer purchase order with a company's employees or by telephone order around it.
Traditional trades Is that the customer into buying the place at leisure and can buy anything you want. Or customers to order its employees. Or place the order over the phone in time. Maybe we would have enough time to buy in this format.
Trading again. Is that customers come to buy according to various places according to demand and can choose to buy things according to need. Customers to order or to employees of the company. Any places by order over the phone.