The Process (typically a Rectangle) shape shows a process, task, action, or operation. This shape represents something to be done or an action to be taken.
Diamond – Used to represent a decision point in the process. Typically, the statement in the symbol will require a `yes' or `no' response and branch to different parts of the flowchart accordingly.
Process symbol This common symbol is shaped as a rectangle, and it can also be called the action symbol. It represents an action, function or process and can be considered one of the most-used flowchart symbols.
The rectangle represents something to be done or an action to be taken. The diamond shape denotes a question or a branch in the flowchart sequence. The parallelogram is used to show input or output from a data source.