Complex system HCI as a triangle of interface, content, and person interaction

Abstract

For complex systems, the human-system interaction alone should not be the focus of the design problem. Complex system HCI needs to move well beyond human-interface concerns and consider how the triangle formed by interface, content, and person interact within the situational context. Complicating the design of the triangle is that reality implies not a single person, but many people (different audiences) each with varying information needs, which implies dynamic content and may require varying interactions.