| 摘要 |
PROBLEM TO BE SOLVED: To facilitate license key management when a plurality of nodes are used. SOLUTION: A license key corresponding to node identification information owned by one of the plurality of nodes connected to a network, is owned by each of the plurality of above nodes. A node in operation checks whether its own node or any other node connected to the own node owns the node identification information corresponding to the license key owned by the own node. When a period in which the check result is negative elapses for a predetermined period or more, the node in operation suspends the operation. COPYRIGHT: (C)2009,JPO&INPIT |
