Message Oriented Middleware for Flexible Wizard of Oz Experiments in HCI

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Wizard of Oz (WOZ) systems and WOZ experiments are an important tool for basic and applied research in HCI. We report about using SEMAINE as a flexible component based middleware with a loose coupling of components as software infrastructure for WOZ experiments in human companion interaction. We focus on our experimental WOZ designs, their realisation within the SEMAINE framework and lessons learned from deploying the implemented solutions as the basis for ongoing controlled experiments with 120 subjects.