The Delphi technique is a process in which the forecasts and judgments of a selected group of experts are solicited summarized in an attempt to determine the future of employment.
The Delphi technique, which was named after Greek oracle at Delphi, was developed by N.C. Dalkey and his associates at the Rand Corporation in 1950 and is especially useful qualitative method of deriving detailed assumptions on long-run HR demand. This forecasting technique is “a carefully designed program of sequential, individual interrogations (usually conducted through questionnaires) interspersed with information feedback on the opinions expressed by the other participants in previous rounds”