| 摘要 |
A server according to one embodiment includes a receiving unit, a position determination unit, and a transmitting unit. The receiving unit receives, from a terminal, selection information indicating at least one item selected on the terminal displaying a list containing a set of a plurality of items. The position determination unit determines a position to which the at least one item can be moved in the list by referring to a storage unit storing constraint information. The transmitting unit transmits, to the terminal, position information indicating a determination result by the position determination unit in order to display a position to which the at least one item can be moved and a position to which the at least one item cannot be moved in a distinguishable manner on the terminal at an arbitrary time before movement of the at least one item is completed. |
