Data visualization system. Small data sets can be presented in totality and in detail in a single view. Often the third dimension is used only to make the presentation fancier, and not to get better insight about the data. For very large data sets it can be combined with zooming or fish eye. Selecting different glasses we obtain different views on the same data.
Glasses have effect on the entire window, and lenses only on the selected region.
Windows File Manager. In visualizing multivariate data we usually deal with small or large, sparse and static data sets. X i be a set of units . It is usually represented by a glyph which integrates, as its components, elements representing unit's attributes. Most of data analysis procedures can be seen as transformations on or relations between these levels.