What do flowchart symbols mean?
Which flowchart shape should you use? If you are new to flowcharting, the large number of shapes can be intimidating. This page should help in making your decision. Most charts can be drawn with the first five basic flowchart shapes listed. The others are optional and often only confuse people. Circle Circles represents data in most flowchart diagrams. With GIS circles are used to distinguish data input to a process and data that result from processing. It is convenient to use different colors to identify various states of data: input, temporary, output, final product, and the like. ESRI’s Model Builder also uses circles in the case of processes that require constants or other input other than spatial data Lines with Arrows You read a flowchart by following the lines with arrows from shape to shape. The lines with arrows determine the flow through the chart. Flowcharts are usually drawn from top to bottom or left to right. Numbering shapes is optional. Numbering is helpful if you have
