Abstract: Provided is a maintenance system which includes a plurality of operating components (10) which autonomously operate by transmitting and receiving messages, and an information processing device (20). The operating component (10) includes an acquisition unit (17) that acquires observability data for grasping a state of the operating component (10), and a data transfer unit (16) which imparts an item common to different types of observability data and sends the data. The information processing device (20) includes a storage unit (21) which receives and stores the observability data, a correlation unit (22) which correlates different types of observability data on the basis of a common item included in the observability data, and a display unit (23) which displays the correlated observability data.

Abstract: A test code generation device includes an action generation unit that acquires at least one of pieces of API-related data of an API specification, an API execution order file, a parameter setting file, a script setting file, a test type, and a parameter list and generates action code data corresponding to an action of a state transition pattern of an API adapter, and the test code generation unit that generates a test code of the API adapter based on the action code data generated by the action generation unit and the state transition pattern of the API adapter.