Abstract: An API adapter generation device include a conversion rule calculation unit (16) configured to acquire a data model of an orchestrator (210) and an API specification to be managed and perform schema matching on the basis of a data schema of the orchestrator and a data schema of the API specification to calculate a model conversion rule, a call logic unit generation unit (19) configured to rewrite a source code of an API call logic unit 232 describing an API adapter execution logic on the basis of the model conversion rule, and an API adapter generation unit (21) configured to generate an API adapter to be managed on the basis of the API call logic unit in which the source code is rewritten.

Abstract: The present invention achieves automation of validation of a catalog created by a cooperative service catalog creator through a GUI. A catalog verification device 60 is a catalog verification device 60 that verifies the catalog created by the catalog creation assistance system that assists creation of the catalog used in the orchestrator 50.

Abstract: An Application Program Interface (API) adapter creation apparatus is configured to accept, from a developing engineer, a setting of an execution order of a wholesale service API invoked by internal processing of an adapter API provided by an API adapter, a setting of a request parameter of the adapter API serving as an acquisition source of a request parameter of the wholesale service API, and a setting of a response parameter of the adapter API serving as a reflection destination of a response parameter of the wholesale service API. The API adapter creation apparatus generates a source code based on the accepted settings.

Abstract: A network system includes a storage unit that stores topology information in a graph database in chronological order, the topology information including end point information and connection information of logical resources of the virtual network, end point information and connection information of physical resources of the physical network, and correspondence information between the logical resources and the physical resources; a setting information acquirer that acquires setting information of the virtual network from the orchestrator using a change notification from the orchestrator as a trigger; and a topology information management unit that updates the topology information stored in the graph database of the storage unit on the basis of the acquired setting information.

Abstract: The present invention achieves automation of validation of a catalog created by a cooperative service catalog creator through a GUI. A catalog verification device 60 is a catalog verification device 60 that verifies the catalog created by the catalog creation assistance system that assists creation of the catalog used in the orchestrator 50.

Abstract: A catalog creation support system, catalog creation support method, and program that allow a catalog creator to intuitively create a catalog using a GUI are proposed. The catalog creation support system is a system for supporting catalog creation used in an orchestrator and includes a GUI generation device (30) configured to generate a GUI, and a catalog creation device (40) configured to create a catalog, wherein a catalog definition file (F1) in which definition information of the catalog is described is read and a service-independent catalog information abstraction model is constructed.

Abstract: [Problem] An API adapter of a wholesale service provided in a coordination execution apparatus of a wholesale service. [Solution] An API adapter creation apparatus 100 is configured to accept, from a developing engineer, a setting of an execution order of a wholesale service API invoked by internal processing of an adapter API provided by an API adapter, a setting of a request parameter of the adapter API serving as an acquisition source of a request parameter of the wholesale service API, and a setting of a response parameter of the adapter API serving as a reflection destination of a response parameter of the wholesale service API. The API adapter creation apparatus 100 generates a source code based on the accepted settings.

Abstract: [Problem] Creation of a catalog used by an API orchestrator and creation of a GUI relevant thereto are facilitated. [Solution] A catalog definition file 41 including a versatile definition data necessary for catalog creation is managed, and a catalog file creation assistance GUI generation unit 44 automatically generates web-based GUI data 55 to be displayed on a creation assistance screen of a creation target catalog based on the catalog definition file. A catalog file creation assistance GUI unit 45 receives a request from a web browser 51 on the creation assistance screen and replies with an appropriate response. The catalog file creation assistance GUI generation unit 44 dynamically creates the GUI data 55 that can be displayed on the creation assistance screen in response to a request received by the catalog file creation assistance GUI unit 45.

Abstract: [Problem] To provide a network system, a topology management method, and a program that can quickly identify the location of the disorder. [Solution] A network system includes a storage unit 130 that stores topology information 220A in a graph database 220 in chronological order, the topology information 220A including end point information and connection information of logical resources of the virtual network 11, end point information and connection information of physical resources of the physical network 1, and correspondence information between the logical resources and the physical resources; a setting information acquirer 121 that acquires setting information of the virtual network 11 from the orchestrator 300 using a change notification from the orchestrator 300 as a trigger; and a topology information management unit 120 that updates the topology information 220A stored in the graph database 220 of the storage unit 130 on the basis of the acquired setting information.