Visual Analytics (VA) is an emerging field that provides automated analysis of large and complex data sets via
interactive visualization systems in an effort to facilitate fruitful decision making. VA is a collaborative process
between the human and the machine. In this paper, we present a multi-faceted overview of this human-computer collaboration. The system facet contains everything about the data, analytical tasks, visualization types and the relationships between them. The user facet contains the number and properties of the users. The collaboration facet covers the interactions between the system and the users within the context of VA.