One of the graphical representations used to show the flow of data from source to destination is Data flow diagrams (DFD). DFDs are widely used for visual representation. When it comes to analyzing the process of data handling, DFDs are used to understand the entire structure of the data flow.
Let us understand the importance of DFDs using a simple example. Consider a case when someone decides to build a building. The very first thing he will do is hire an architect, who will analyze the building area and build the blueprint of the building structure. This blue print will be considered the base architecture of the building and the building will be built as per the blue print created by the architect. The importance of making the blue print before starting the actual building is to understand the various aspects of the building, to understand the risk involved...
