| 摘要 |
A device management system includes a managed device and a device management apparatus. The device management apparatus includes an information acquisition unit requesting device information from the managed device. The managed device includes a storage unit, a first information source managing device information that is available via a communication protocol, a second information source managing device information that is not available via the communication protocol, and an information providing unit providing the requested device information to the information acquisition unit. The information providing unit determines whether an up-to-date version of the requested device information is stored in a storage area of the storage unit and obtains the up-to-date version of the requested device information from the first information source or the second information source if the up-to-date version of the requested device information is not stored in the storage area of the storage unit.
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