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system reach its goal or to set a new goal. ? In a heating system, the control was the desired temperature. Navigation System Control ? Obviously, entering a new destination ? Not so obvious… ? zooming in ? changing the map view ? selecting an alternative route Key Points ? A Navigation System takes raw data (maps, locations) and displays it visually (data ? information) so that it is easier to drive to a location. ?Goal ? The feedback (your current location) is perhaps the most important feature. ? Paper maps can NOT show your location. Geographic Information Systems (GIS ? In lab we are going to learn more about… 1. GIS systems… ? Data more informational (more valuable) if you visualize it on a map. 2. Attributes that make information more valuable… ? Information is more valuable if it helps you achieve your goal