The Delphi Method (also known as the Delphi Opinion Cycle) is a structured communication technique used for gathering expert opinions and achieving consensus through multiple rounds of surveys.
This survey supports the first round of opinion collection. The outcome can then be shared with the experts in two or three subsequent rounds, for refinement and consensus building, until a final consensus is reached.
Developed by the RAND Corporation in the 1950s, it is widely used in strategic foresight, policy analysis, and decision-making.