4.1 CONCEPTUAL PERSPECTIVE Four Visualization Stages data importing: data filtering and enrichment; data mapping; data rendering -unction mappin:Vs.Di->〗n Vis: function mapping Di the set of all possible types of raw input data n: the set of produced images Reverse function mapping nsight:丌->Di4.1 CONCEPTUAL PERSPECTIVE • Four Visualization Stages: data importing; data filtering and enrichment; data mapping; data rendering • Function mapping: Vis: Di --> Л Vis: function mapping Di : the set of all possible types of raw input data Л : the set of produced images Reverse function mapping: Insight: Л --> Di