A previous study found that repeated interruptions, a form of etiquette violation, can affect overall system performance as well as human trust and workload (Parasuraman & Miller, 2004). However, there is only limited empirical work on the effects of human performance on automation etiquette and their implications for design. In the current study we investigated the effects of automation etiquette and reliability in a fire fighting simulation. Fourteen participants were asked to monitor a group of unmanned vehicles and allocate them to various rescue locations upon request. An automated assistant provided recommendations for each request in either a friendly or rude tone of voice at either 80% or 60% reliability. Preliminary results revealed that participants performed with higher accuracy during conditions where the automation had a rude tone of voice. Situation awareness, which was assessed via probing questions during the task, decreased during the friendly, 60% reliable condition compared to all other conditions. Results point to the need to consider automation etiquette in the design of automated systems.
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