Information processing apparatus, information processing system, and information processing method

An information processing apparatus (10) includes a process control unit (12) configured to execute one or more process units with respect to input data in an order defined by definition information (600a, 600b, 600c), an output unit (15) configured to cause information to be output in a form changeable by a user when a first process unit of the one or more process units is stopped, and an accepting unit (16) configured to accept changed information corresponding to the information output by the output unit that is changed by the user. The information output by the output unit includes at least one of output information of a process unit executed before the first process unit and input information set up in the definition information with respect to a process unit to be executed after the first process unit. The process control unit (12) controls execution of the process unit to be executed after the first process unit based on the changed information accepted by the accepting unit (16).