| 摘要 |
PROBLEM TO BE SOLVED: To make utilizable contents at a discounted price corresponding to the purchase history or utilization history of the contents. SOLUTION: The purchase history of contents A whose ID is set to usage control status(UCS) A10 is set to 'purchase history'. For example, the number of times of reproduction or the like is stored and when the number of times is greater than a prescribed number, selection of a prescribed utilization style with a set discounted price is enabled. The utilization history such as how many times contents A are actually utilized is stored in 'utilization history' and when the number of times is greater than the prescribed number, the selection of a prescribed style where a discounted price is set, is enabled. |
