Nippon Telegraph and Telephone Corporation

Ryota Katayanagi

Satoshi Kondo

Kensuke Takahashi

Nobuo Onai

Miwaka Otani

A service linkage assistance device includes an executing unit which accepts a request for a stateless API for a stateful service which exposes a stateful API from a service linkage device which executes a linkage service obtained by linking multiple services including the stateful service, interprets the request, and executes the stateful API and a storage unit which stores dynamic information included in a response from the stateful API, and the stateless API is exposed to the service linkage device by the service linkage assistance device.

Service cooperation support apparatus, service cooperation support method and service cooperation support program

A service linkage assistance device includes a reception unit, which receives definition information of a stateless upper-layer API exposed to an upper-layer device that links a plurality of services and definition information of a plurality of stateful lower-layer APIs exposed by a lower-layer device. The service linkage assistance device includes an interpretation unit, which extracts at least one lower-layer API corresponding to the upper-layer API by using the definition information of the upper-layer API and the definition information of the lower-layer APIs, and generates an API correspondence table in which an execution order of the extracted lower-layer API is set.

The present invention achieves automation of validation of a catalog created by a cooperative service catalog creator through a GUI. A catalog verification deviceis a catalog verification devicethat verifies the catalog created by the catalog creation assistance system that assists creation of the catalog used in the orchestrator. The catalog verification deviceincludes a BG cooperation function unitthat is a function unit for communicating with a catalog creation deviceincluded in the catalog creation assistance system, and a catalog verification function unitthat verifies the catalog created by the catalog creation assistance system based on information acquired by the BG cooperation function unit, in which validation of the catalog is performed from perspectives of a mandatory check, a syntax check, and sequence of rules for cooperation among services by performing syntactic analysis of a file when the cooperative service catalog is created by and stored in the catalog creation assistance system.

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Musashino, Japan

Ryota Katayanagi