Ying Sun, Daniel S. Weld
We describe IRS, a program that combines partial-order planning with GDE-style, model-based diagnosis to achieve an integrated approach to repair. Our system makes three contributions to the field of diagnosis. First, we provide a unified treatment of both information-gathering and state-altering actions via the UWL representation language. Second, we describe a way to use part-replacement operations (in addition to probes) to gather diagnostic information. Finally, we define a cost function for decision making that accounts for both the eventual need to repair broken parts and the dependence of costs on the device state.