Mae cynllun 'cyfnewid' o dan raglen LEONARDO DA VINCI yn golygu cyfnewid profiad neu wybodaeth rhwng cwmn't'au, pnfysgolion neu sefydliadau hyfforddi, neu rhwng athrawon/ darllthwyr.
An 'exchange' under LEONARDO DA VINCI is an exchange of experience or knowhow between firms, universities, training organisations, instructors or lecturers.