Teaching:TUW - UE InfoVis WS 2005/06 - Gruppe G8 - Aufgabe 2
|Element||Poor Graphic||Worked Graphic|
|legend||The legend is inconsistent in its symbols and in its ranges (not continuous).||The symbols are continuous and follow the rules for representing non-metric but ordinary classes of ranges [Miksch, 2005]|
Moreover all 5 symbols have evaluated out of the same basic symbol (snowflake), and are thus consistent.
Moreover the ranges which are represented by the symbols were made to descend into one another.
|legend (symbols)||The root version, even though its symbols are inconsitent in shape and color, gives a rough impression where snow can be expected in a major amount. It provides the user with some sort of a rough overview about Idaho and the snowfall. This is information we thought is very useful.||The symbols now give a good impression where high amounts of snowfall can be expected.|
|legend (background)||The legend has no explicit bakground.||The legend now has a slight linear gradient from white (70% visible) to 100% visible white. This suggests the impression that the lower symbols (bigger) represent more snow.|
|background (map, the image)||Keeps no information (for the data of snowfall)||Was exchanged by a satellite view of Idaho, giving just the outer bounds of the state and the inner borders of the different districts.|
|background (radial gradient)||Is distracting the viewer, keeps no additional information.||Was changed to a very light gray background to keep a contrast between the shape of the land (which is white in large parts as well).|
|spot indicators (color)||The spot indicators are all of a different color, which can not at all be related to the amount of snow it should represent.||The color keeps no informations, so the attribute is dumped.|
|spot indicators (form)||Are inconsistent and the fourth one does not give a good idea where the center actually is (asymetric).||The new symbol has a clear center point, representing the spot on the map where the viewer can expect the place named.|
|spot description (text)||The text is in white, which has a too low contrast most of the time due to the irregular color of the background image.||The text is written in simple black color.|
 [Miksch, 2005] Basic Understanding of Information Visualisation, Course Transparencies, p.29, Retrieved at: October 2005.
 [Miksch, 2005] Focus + Kontext, Course Transparencies, p.5 ff, Retrieved at: October 2005.