1. An electronic commerce (e-commerce) system, comprising: a database, the database comprising: a webpage collection and item storage unit that stores information to be collected from a webpage for one or more items corresponding to a first product; and a server communicatively coupled to the database, the server comprising: a webpage information collection processing unit that gathers item related data to be collected by the webpage; a time section value score calculation unit that calculates a respective value score for each of a plurality of time sections; a product launch/withdrawal optimal time determination unit that determines a optimal time to launch or withdraw the first product based on value scores of the first product for the plurality of time sections; and a product launch/withdrawal processing unit that renders product launch or withdrawal of the first product in the optimal time.