| 摘要 |
<p>PROBLEM TO BE SOLVED: To promote communication between users in which the present of an item serves as an element.SOLUTION: Relating to item grant accompanying an event play, a priority acquisition item, the appearance rate of which is especially higher than those of the others, is established from among candidate items 14a-14e specific to an event, for each user. Further, the kinds of the priority acquisition items are established to be dispersed within a reference user 2a and his or her friend users 2b-2e. As a result, the kinds of items to be granted by playing the event are one-sided from user to user, it is easy for each user to acquire the two or more priority acquisition items but hard to obtain a non-priority acquisition item, thereby promoting a present between users.</p> |
