Vertaile menetelmiä

	Kasvokkain tapahtuva Delfoi-tekniikka	Delphi-tekniikka
Tieteenala	Kyselytutkimuksen metodologia	Kyselytutkimuksen metodologia
Menetelmäperhe	Process / pipeline	Process / pipeline
Syntyvuosi	1950s–1963	1950s–1963
Kehittäjä	Norman Dalkey and Olaf Helmer (RAND Corporation)	Norman Dalkey and Olaf Helmer (RAND Corporation)
Tyyppi	Structured expert-consensus method	Iterative expert consensus technique
Alkuperäislähde	Dalkey, N., & Helmer, O. (1963). An experimental application of the Delphi method to the use of experts. Management Science, 9(3), 458–467.	Dalkey, N., & Helmer, O. (1963). An experimental application of the Delphi method to the use of experts. Management Science, 9(3), 458–467.
Rinnakkaisnimet	in-person Delphi, face-to-face Delphi, conventional Delphi, FtF Delphi	Delphi method, Delphi survey, expert consensus method, iterative expert panel
Liittyvät	5	6
Tiivistelmä	The face-to-face Delphi Technique is a structured, iterative consensus-building method conducted through in-person sessions with a purposively selected panel of experts. Across multiple rounds, panelists independently respond to structured questionnaires, receive aggregated group feedback, and revise their judgments until acceptable consensus is reached. The face-to-face format adds direct interpersonal interaction while preserving the anonymity of individual ratings within each round.	The Delphi technique is a structured, multi-round data collection method that harvests and refines expert opinion through iterative questionnaires and controlled feedback. Developed at RAND Corporation in the 1950s, it is designed to converge a dispersed expert panel toward a reliable consensus on complex, uncertain, or future-oriented questions — without the conformity pressures of face-to-face group discussion.