Article Parsons, P & Sedig, K (2014). Adjustable properties of visual representations: Improving the quality of human-information interaction. Journal of the American Society for Information Science and Technology (JASIST), 65(3), 455-482. Through interaction with visual representations of information at the visual interface of these tools, a joint, coordinated cognitive system is formed. EDIFICE-PVR framework (Epistemology and Design of human-Infomration Interaction in complex Cognitive Activities-Properties of Visual Representations) Interactivity: Quality of interaction "Interactivity is an emergent property of the cognitive system that is created by an interactive coupling between an actor and a CAST (Cognitive Activity Support Tools)". Can be examined at different levels: micro level (single interaction) and macro level (multiple interaction put together Human Information Interaction in Complex Cognitive Activities Information Space Computing Space Representation Space Interaction Space Mental Space EDIFICE-PVR Example Provides a high level support structure for thinking about the quality of human-information interaction during the performance of complex cognitive activities.