start The terminator symbol marks the starting or ending point of the system. It usually contains the word “Start” or “End.”
action A box can represent a single step (“add two cups of flour”), or and entire sub-process (“make bread”) within a larger process.
document A printed document or report.
input Represents material or information entering or leaving the system, such as customer order (input) or a product (output).
connector Indicates that the flow continues on another page, where a matching symbol (containing the same letter) has been placed.
flow Lines indicate the sequence of steps and the direction of flow.