“…While other mixedpresence collaborative systems (such as [38]) are mainly designed for general groupware applications, Hugin was developed specifically to suit tasks that are common when interacting with a visual data display, such as overview, filtering and details [30], brushing [5], and dynamic queries [29]. Additionally, Hugin builds on a large number of principles drawn from the literature in computer-supported collaborative work, such as personal territories for identity tracking and object ownership [21], information access through an object layer system [28], and awareness of other participants' workspaces through features such as telefingers and a minimap [13,14]. These mechanisms are controlled using a personal interaction dock, unique to each individual participant.…”