This research report discusses human group characteristics as a stepping stone to study human-agent team characteristics and dynamics. A human-agent team, or so called actor-agent team (AAT) is a group of humans and agents who interact in a coherent and coordinated way towards a common goal. The concept of AATs relates to actor-agent communities (AACs), as AACs are groups of humans and artificial systems (socio-technical information systems) that intimately work together to achieve a common goal (i.e. solve a problem) (Iacob et al., 2009).
AATs are envisioned to increase human performance in (among others) safety and security domains, emergency management, and traffic control. However, the concept of AATs brings many challenges. Besides the realisation of agents as teammembers, and the realisation of real-world AATs, the interaction between agents and humans is a challenge. If agents are to become (task performing) group members, team membership requires much from agents regarding human-agent interaction. How should agents be designed to become teammembers in an AAT? How can humans best interact with agents? When do trust an agent, or rely on it?
This document discusses human group characteristics to draw implications for AAT dynamics. This document is a follow-up of Gouman et al. (2008) in which stages of team development, group membership and cohesion, subgroups, norms, roles, status, and leadership were discussed. The current report first addresses communication and decision making, after which team performance and implications for AATs are discussed.