In many diagnosis and repair domains, diagnostic reasoning cannot be abstracted from repair actions, nor from actions necessary to obtain information of diagnostic value. TraumAID 2.0, a consultation system for multiple trauma management, implements a reasoning architecture for exploratory-corrective domains which integrates diagnostic reasoning with planning and action. Taking the view that a diagnosis is only worthwhile to the extent that it can affect repair decisions, its goal-directed diagnosis (GDD) framework views the diagnosis object as secondary to the formation of appropriate goals for a complementary planner. We start this article with a specific case of multiple trauma injury. Demonstrating some of the key features of exploratory-corrective domains, we use this case to exemplify the suitability of our approach. Before focusing on the GDD reasoner itself, we overview TraumAID 2.0's exploratory-corrective management architecture in which it is embedded with a companion planner, and explain its iterative interaction with the physician. The paper's main body presents GDD's formalism, and knowledge representation scheme, and proposes a design methodology for GDD-based systems (the companion planner, and the implemented system are described elsewhere). Before concluding, we present a set of strategies characteristic of exploratory-corrective domains, and argue the suitability of our framework for their implementation.

TraumAID is a consultation system for the diagnosis and treatment of multiple trauma. It integrates diagnostic reasoning, planning, and action. Its reasoner identifies diagnostic and therapeutic goals appropriate to the physician's knowledge of the patient's state, while its planner advises on beneficial actions to next perform. The physician's lack of complete knowledge of the situation and the time limitations of emergency medicine constrain the ability of any planner to identify what would be the best thing to do. TraumAID's Progressive Horizon Planner has been designed to create a plan for patient care that is in keeping with the standards of managing trauma.>