The figure is a first draft drawn our data stream FIG. Before drawing, we consulted Wang, determine the approximate composition of the data flow graph. Composed of a data flow diagram and user interface management interface of two parts, the top layer of the data flow graph, and customer management data as a data source and lake; subdivided into two flow ports in FIG. 1 layer data, depending on the user select switch.
The data flow diagram sketches drawn together by everyone, then Hu Chen Lu has been modified, and the sketch into an electronic picture mode.