This paper presents a framework in which a versatile visualization system can be developed to symbolically represent database records. Such a system can handle special visualization needs of individual applications without reprogramming the system. In addition to the regular visualization components, this framework has a rule component, which contains a rule interpreter, a rule base and a graphics base. The rules in the rule base and graphical templates in the graphics base capture application-specific knowledge about the data. The rule interpreter uses the rules to select and place graphical symbols to represent the dat records. Only the rules and templates need to be switched to adapt such a visualization system to different applications. A rule-based database visualization system has been built based on the framework. As a test of the system, it is adapted to draw collision diagram for the Ohio Department of Transportation, which has a database of traffic accident records. Each symbol in a collision diagram is graphical depiction of an accident. Rules and templates are defined so that the symbols can reveal vehicle direction, point of impact and other related information about the accident.
Conference Committee Involvement (9)
Visualization and Data Analysis 2011
24 January 2011 | San Francisco Airport, California, United States
Visualization and Data Analysis 2010
18 January 2010 | San Jose, California, United States
Visualization and Data Analysis 2009
19 January 2009 | San Jose, California, United States
Visualization and Data Analysis 2008
28 January 2008 | San Jose, California, United States
Visualization and Data Analysis 2007
29 January 2007 | San Jose, CA, United States
Visualization and Data Analysis 2006
16 January 2006 | San Jose, California, United States
Visualization and Data Analysis 2005
17 January 2005 | San Jose, California, United States
Visualization and Data Analysis 2004
19 January 2004 | San Jose, California, United States
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