Abstract: Recently, there is a desire to accurately share information concerning the presence or absence and content of a change in a setting parameter value. Provided is a change detection apparatus including a parameter acquiring section that acquires a value of at least one setting parameter of a field device, at predetermined time intervals; a change detecting section that detects whether the value of the setting parameter has been changed; and a change information output section that outputs change information, in response to a change in the value of the setting parameter having been detected.

Abstract: Recently, there is a desire to accurately share information concerning the presence or absence and content of a change in a setting parameter value. Provided is a change detection apparatus including a parameter acquiring section that acquires a value of at least one setting parameter of a field device, at predetermined time intervals; a change detecting section that detects whether the value of the setting parameter has been changed; and a change information output section that outputs change information, in response to a change in the value of the setting parameter having been detected.

Abstract: A device management apparatus includes: a memory that stores device individual information including information about a current state of a device, wherein the device individual information is unique to the device; and a processor that receives information about an action for the device from an external terminal apparatus, derives a subsequent state of the device based on the current state and the action for the device by referring to a definition of a predefined state transition, and causes a transition from the current state to the subsequent state.

Abstract: A maintenance management device includes a vendor information acquirer configured to acquire vendor information of a vendor of a device using identification information for identifying the device, a user information acquirer configured to acquire user information of a user who uses the device, and a work order processor configured to generate a work order of a maintenance operation for the device based on the vendor information acquired by the vendor information acquirer and the user information acquired by the user information acquirer.

Abstract: A maintenance management device includes a vendor information acquirer configured to acquire vendor information of a vendor of a device using identification information for uniquely identifying the device, a user information acquirer configured to acquire a usage condition of the device possessed by a user who uses the device, a recommendation storage that stores a recommendation condition set based on the vendor information and a recommendation content related to maintenance of the device in association with each other, a determiner configured to determine whether the recommendation condition is satisfied or not based on the usage condition, and a recommendation notifier configured to notify of the recommendation content associated with the recommendation condition if the determiner determines that the recommendation condition is satisfied.