Sangeet Paul Choudary recognizes two wide groups of plans of action in an article in Wired magazinelflil] Choudary contrasts pipes {direct plans of action} with stages [arranged plans of action}' On account of lines, rms make labor and products, push them out and offer them to clients. Esteem is created upstream and consumed downstream. There is a straight stream, similar as water coursing through a line. Not at all like lines, stages don't simply make and push stuff out. They permit clients to make and consume esteem