Operation device and operation method

An operation apparatus, including one or more computing devices, for outputting a request to a management apparatus which manages a Network Service (NS) constructed on a NetWork (NW) including a core NW serving as a virtualization area and an access NW serving as a non-virtualization area, the operation apparatus comprising at least one processor and a memory including instructions that when executed by the at least one processor cause the operation apparatus to be configured to:

• detect, on the NS that is already constructed on the NW, a fault using one or more of deep learning or a support vector machine;
• store, for the NS that is already constructed on the NW, new configuration information obtained by updating NW configuration information indicating an NW configuration including devices disposed on the NW due to the fault of the NS that is already constructed on the NW, a catalog which is a template of the NS that is already constructed on the NW, a record describing a lifecycle of the NS that is already constructed on the NW, and an order for requesting the management apparatus to control the NS that is already constructed on the NW;
• determine, due to the fault, an optimal configuration of the NS that is already constructed on the NW based on the new configuration information, the catalog, the record, and the order;
• and
• generate a change order that changes an NS configuration of the NS that is already constructed on the NW to the optimal configuration determined due to the fault on the NS.