Abstract: There is provided a data server capable of improving a quality of a spectacle lens as a finished product and reducing a cost, even if a semi-finished lens having a complicated shape is used, the data server including: a specification data acquisition unit configured to acquire specification data of a semi-finished lens transmitted from a first terminal; a specification data storage unit configured to store the specification data acquired by the specification data acquisition unit; and a specification data output unit configured to output the specification data stored in the specification data storage unit, to a second terminal.

Abstract: The object of the present invention is to facilitate collection of contents that are present on a network. Attribute information is stored at a predetermined location under a domain in a server that provides a device driver. The attribute information specifies attributes of the driver provided by the server, such as the address, the corresponding type, the version, the installation method, and the platform, in an XML format. The user of the driver fetches the attribute information from a computer connecting with the network and analyzes the details of the attribute information, so as to readily specify the address of the driver, irrespective of the construction of the server. The attribute information also shows whether or not the driver has been updated. This arrangement facilitates automatic acquisition of the updated driver.

Abstract: Disclosed is a device management network system that is capable of monitoring all abnormalities that has occurred in a network device. The device management network system includes a management server, client devices, and network devices to be managed. The management server, when receiving a device-details screen request from a certain client device running a Web browser, collects MIB objects from the printing device specified by the information in the device-details screen request. Then, the management server provides the client device with data which causes the Web browser to display the device-details screen containing information about all abnormalities that has occurred in the printing device.

Abstract: The present invention provides a technique of enabling a user of a client to readily recognize whether or not a service device is capable of providing a service. The service device is connected to the client via a network and sequentially provides a service in response to a service request from the client. The service device comprises: a detection module that detects whether or not the service device is capable of providing a service within a preset time period; and a notification module that notifies the client of the result of detection regardless of whether or not the service request has been issued from the client.

Abstract: A device management network system is capable of monitoring the operation status of network devices in real time with a Web browser without wasting network resources. The device management network system includes a management server, client devices, and network devices to be managed. Each of the network devices transmits an SNMP trap indicating a change of its own operation status to the management server when a status change occurs. In response to a device-details screen request from a client device, the management server provides HTML data, by which the client device running the Web browser is caused to execute a displaying applet for displaying a device-details screen and to execute a notifying applet causing displaying applet to be re-executed in response to receipt of a change notifying packet, which is outputted from the management server receiving the SNMP trap from the network device.

Abstract: The object of the present invention is to facilitate collection of contents that are present on a network.