US Patent 8443381 API evaluation system in embedded device

An API evaluation system which includes: a test procedure description device in which an API execution procedure is described; a virtual API device for issuing a command to call the API and acquiring a return value by supplying the API of a target device to the test procedure description device; a script execution device for performing script interpret; a command transmission device for transmitting the command to the target device; and a log reception device for receiving a result log obtained after the API execution from the target device. A user program installed on the target device is controlled and verified on per-API basis.