Outline process chart: An outline process chart is a process chart giving an overall picture by recording in sequences only the main operations and inspections. In an outline process chart, only the principle operations are carried out and the inspections made to ensure the effectiveness are recorded, irrespective of who does them and where they performed. In preparing such a chart, only the symbols for “operation” and “inspection” are necessary. In addition to the informed given by the symbols and their sequences, a brief note of the nature of each operation or inspection is made beside the symbol, and are allowed to be added.