presentation - Seeing the Invisible through interviewing with SF Express’s professionals on the telephone, I learned that SF EXPRESS's workflow has four main steps. The first step is to deal with the picking information，which is sorted according to its output form to organize a set of good's information, and then the sorting process begins. That is the classification of customers ‘orders which could increase the efficiency of the next process. The step two is to input the relevant goods and classification information to the automatic control system through an information input device which can then automatically classy the information of different goods. This method can provide a platform to check the real-time tracking of parcels, which can not only facilitate the work of SF employees but also let consumers clearly know where their parcels are. The step three is to analysis these goods and classification information and create a data instruction and transmit it to the sorting machine. Then, it’s the last step, using automatic identification device such as the barcode technology and radio frequency identification technology ( RFID ) to sort automatically while picking goods. Then transfer these goods from conveying system to the classification system and output them according to the preset classification requirements. Therefore the sorting operation finishes. In these steps, 巴枪 plays an important role, which can upload and save data such as customer's name, the time of receipt of goods, parcel status, abnormal information, and also has the electronic signature function. When 巴枪 scan the barcode or update the delivery information, every detail relevant information will be sent to the data center, which can realize the efficient information exchange - the client can check the real-time information about the items which greatly improves the transparency of the logistics process.