পদ্ধতির তুলনা করুন

	ডেলি পদ্ধতি	ট্রায়াঙ্গুলেটেড ডেলফি কৌশল
ক্ষেত্র	জরিপ পদ্ধতি	জরিপ পদ্ধতি
পরিবার	Process / pipeline	Process / pipeline
উদ্ভবের বছর	1950s–1963	Delphi: 1963; triangulation integration: 1970s–1990s
প্রবর্তক	Norman Dalkey and Olaf Helmer (RAND Corporation)	Norman Dalkey & Olaf Helmer (Delphi); triangulation principle from Norman Denzin
ধরন	Iterative expert consensus technique	Expert-consensus data collection with multi-method validation
মৌলিক উৎস	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.
অপর নাম	Delphi method, Delphi survey, expert consensus method, iterative expert panel	Delphi with triangulation, mixed-method Delphi, multi-method Delphi, triangulation-enhanced Delphi
সম্পর্কিত	6	5
সারসংক্ষেপ	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.	The Triangulated Delphi Technique combines the structured expert-consensus process of the classic Delphi method with deliberate triangulation — integrating data from at least one additional source or method (e.g., systematic literature review, interviews, survey data) to cross-validate findings and enhance the credibility of expert judgments. It retains the iterative, anonymous, multi-round panel format while embedding verification steps that reduce reliance on panel consensus alone.