Flowcharts are simple diagrams that map out processes using standard symbols and arrows to show the sequence and flow. They are used when a visual representation of a process is needed, to identify areas for improvement, or to check if the documented process matches the actual steps. To create a flowchart, the inputs and outputs are defined, activities are listed in order, and standard symbols are used to construct the chart which is then reviewed. Flowcharting helps estimate costs, facilitates cross-functional understanding of end-to-end processes, and can help teams reach agreement by diagramming problems.