Patent ID: 6901535

Claim:
An information processing apparatus for testing and debugging multitask programs operating on a real-time operation system, comprising: user interface means for displaying an operation state of a program by an X-Y coordinate with respect to an X-axis value representing timings of events and a Y-axis value representing tasks, to a user in a time-series manner based on program execution history information, and for receiving a portion of a defect pointed out by the user in the displayed operation state; and operation analysis means for analyzing a cause of the defect from a timing and a task of the defect pointed out from the user by said user interface means and from the operation state of the program, and for specifying a solution for solving the cause of the defect, wherein said operation analysis means regenerates an operation state on which said solution is reflected; and said user interface means displays said cause of the defect, said solution and the regenerated operation state to the user.