There are various definitions of autonomous agent. According to Brustoloni (1991) According tuo Maes (1995) Franklin and Graesser (1997) review different definitions and propose their definition They explain it Agent appearance Lee et al. (2015) post safety issue from how the combination of external appearance and internal autonomous agent have impact on human reaction about autonomous vehicles. Their study explores the humanlike appearance agent and high level of autonomy are strongly correlated with social presence, intelligence, safety and trustworthiness. In specific, appearance impacts most on affective trust while autonomy impacts most on both affective and cognitive domain of trust where cognitive trust is characterized by knowledge-based factors and affective trust is largely emotion driven See also Actor model Ambient intelligence Autonomous agency theory Embodied agent Intelligent agent Intelligent control Multi-agent system References External links Requirements for materializing Autonomous Agents Artificial intelligence Cognition