PURPOSE: a kind of alumni's network activity system is provided to using alumni's card and provides various benefits, to people the use of alumni's card is that medium alumni is consistent according to the use of alumni's card. ;CONSTITUTION: hosting enterprise server (10) establishes alumni's information DB.The hosting enterprise server provides online alumni's community sites. The hosting enterprise server restores profit generation and passes through alumni's network activity business to alumni by alumni's card. The cumulative sales volume corresponding to the constant speed amount of money of credit card company server (20) is blocked by alumni and hosting enterprise server. ;The 2011 of copyright KIPO submissions
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