The present invention registration / from the affiliated e-commerce system (mall) or the manufacturer's system acquires the product information and price information provided for each Product product information and price comparison information and a price comparison system which provides a link to the e-commerce site in the comparison system is between the registered / affiliated shopping mall system in each product information by interworking and synchronize databases are stored for sharing product information among each mall system price comparison works electronic commerce systems and malls system information It relates to a method for sharing. ; The present invention in the price comparison between the linked e-commerce systems and mall system information sharing method according to the partnership and by offering to collect product information and pricing information provided by registered mall system conveniently buy items buyer clients and promotion of the mall site not only can achieve the effect, it is shared by a variety of information such as product information between the registered mall system it is easy to build and new management / operation of the shopping mall site remarkable effect. ; shopping mall; electronic commerce; Price comparison; P2P
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