SALES SYSTEM AND PRACTICING METHOD FOR USED APPLICATION

摘要

PURPOSE: A used application trading system and a used application executing method thereof are provided to increase the purchases of a charged application by implementing the resale of an application after the purchase of the application. CONSTITUTION: A seller device(100) registers a sales target application. A used application seller device(200) requests the sales of a used application to a used application trading system(500). A used application purchaser terminal(300) purchases the used application through the used application trading system. An open market server(510) posts and sells the used application in an open market site. A used application trading server(530) manages a right to use applications traded through the open market site. An authentication server(550) verifies the validity of a signed certificate in the applications. [Reference numerals] (100) Seller device; (200) Used application seller device; (300) Used application purchaser terminal; (400) Network; (500) Used application trading system; (510) Open market server; (530) Used application trading server; (550) Authentication server;