Explaining device behavior from deep models

Executable, object-based device models, which can provide visually powerful environments in which users can practice procedural and diagnostic skills and observe the effects of their actions, are addressed. The instructional approach can be highly student-directed, allowing the user to experiment, practice, and explore. Alternatively, instruction may be authored to accompany the dynamic simulation, guiding the student through planned demonstrations of tasks and device behaviors. In either case, the graphical simulation portrays the effects of the user´s actions and effects of any malfunctions on the device. By automatically analyzing the functionality and connectivity of the objects comprising the device, domain-independent processes can answer many of the specific questions that arise during technical training. The discussion covers building the device model, supporting user operation, providing expert instruction, and supporting diagnostic tasks