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Shapes standing for kinds of step.
Also known as: Process flow symbols
The set of shapes representing different classes of step in a process diagram.
Represent classes of step in a process — action, decision, input, terminal — by distinct shapes.
Contexts: Technical drawing, Software
Shape carries the class and the text inside carries the content, so a diagram's structure is legible before any of its labels are read — which is why a flowchart in an unfamiliar language is still partly understandable.
Contexts: Technical drawing, Software
The diamond has exactly the property the rest do not: its outgoing arrows must be labelled, because a decision without labelled branches is not a decision.
Contexts: Technical drawing, Software
A rectangle for a process, a diamond for a decision, a parallelogram for input or output, a rounded shape for a terminal, joined by arrows.