| 摘要 |
There is provided a device management system in which a management apparatus is connected, through a communication line, to a management target device which is managed by the management apparatus. When a counter value for the number of occurrences of changes in state information which is obtained from the management target device matches a counter value stored in storage means of the management apparatus, the management apparatus outputs an instruction to display state information which is stored in the storage means on display means. When it is determined that they do not match, the management apparatus outputs an instruction to display state information which is obtained from the management target device on the display means and stores the obtained state information and counter value in the storage means.
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