Flowchart in 1921: Shared baseline

Frank Gilbreth process charts, 1921; ANSI/ISO flowchart symbols later topology of labelled boxes and directed edges Yes if one claim is visible at a glance in Meta, Google and retail print; otherwise link to a full figure. Yes for lab reports and poster boards if axes, units and a source line are present.

Excel or Google Sheets or PowerPoint; export SVG/PDF. Do not rely on hue alone. Label directly and check greyscale. Flowchart: honour topology of labelled boxes and directed edges, and switch when the structure is a hierarchy or a free brainstorm. The core mark of Flowchart is topology of labelled boxes and directed edges.

decisions, loops and hand-offs in a procedure The eye compares length and position more accurately than area. PowerPoint, Excel or Google Sheets and Meta, Google and retail print share the same geometry. Decoration rarely persuades; it slows reading. Perspective distortion wrecks comparison. Keep it flat.