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Chapter 5 is about Data Flow Diagrams, (DFD), and the Ebola information is displayed by graphs and a map of the infected areas. The similarities are that both DFDs and Bar Graphs map out the flow of information. DFD shows the information with flow charts using rectangles, circles, and arrows, plus short text labels, to show data inputs and outputs, storage points and the routes between each destination. A bar graph is a graphical display of data using bars of different heights or lengths. The differences are that DFDs are used to graphically represent the flow of data in a business information system and Bar graphs are used to show how something changes over time. I believe the business modeling can be used to model the infection data for Ebola. The modeling can be used to break up the population into different Chapter 5 is about Data Flow Diagrams, (DFD), and the Ebola information is displayed by graphs and a map of the infected areas. The similarities are that both DFDs and Bar Graphs map out the flow of information. DFD shows the information with flow charts using rectangles, circles, and arrows, plus short text labels, to show data inputs and outputs, storage points and the routes between each destination. A bar graph is a graphical display of data using bars of different heights or lengths. The differences are that DFDs are used to graphically represent the flow of data in a business information system and Bar graphs are used to show how something changes over time. I believe the business modeling can be used to model the infection data for Ebola. The modeling can be used to break up the population into different