System and method for assisting in selling vehicles

A method for assisting in selling vehicles, the method comprising the following steps:

• (a) connecting a mobile terminal with an application server;
• (b) sending a synchronization request to the application server;
• (c) synchronizing information stored in a database server and in the mobile terminal;
• (d) selecting from a data storage information on a vehicle within the purview of a client, including information on fees relating to the vehicle;
• and
• (e) using one or more preset formulas to calculate fees payable in relation to the vehicle, and displaying a budget plan result on the mobile terminal.

A system for assisting in selling vehicles, the system comprising an application server, a database server connected with the application server by a network, and a plurality of mobile terminals connected with the application server by a communication channel, wherein

• the application server comprises a cache manager, a replication manager, and a domain manager, wherein
• the cache manager is used to receive and store information sent by the mobile terminals and the database server;
• the replication manager comprises a first data filter module, which is used to filter information added in the database server, and to modify existing information in the database server and the mobile terminals;
• each of the mobile terminals comprises a link-switching module, a data synchronization module, a second data filter module, and a data storage, wherein
• the data storage is used for storing information downloaded from the application server and input from the mobile terminals;
• the link-switching module is used for switching states of connection as between the mobile terminal and the application server, said states of connection comprising a connected state and a disconnected state;
• the data synchronization module is used for downloading information for synchronization from the application server, and for storing the downloaded information in the data storage;
• and
• the second data filter module is used for filtering modification of data stored in the data storage, said modification performed when the mobile terminal is in the disconnected state, and for sending data thus modified to the data synchronization module;
• and
• the database server is used for storing information on clients, vehicles, employees.