So sánh phương pháp

	Kỹ thuật Delphi trực tuyến	Khảo sát trực tuyến
Lĩnh vực	Phương pháp luận khảo sát	Phương pháp luận khảo sát
Họ	Process / pipeline	Process / pipeline
Năm ra đời	Original Delphi: 1950s–1960s; Online variant: mid-1990s onwards	Mid-1990s (widespread scholarly adoption ~1995–2000)
Người khởi xướng	Olaf Helmer, Norman Dalkey, Nicholas Rescher (RAND Corporation); online adaptation emerged in the 1990s–2000s	Mick P. Couper, Don A. Dillman (early systematic frameworks)
Loại	Iterative expert consensus method (online)	Quantitative / mixed-methods data collection technique
Công trình gốc	Hasson, F., Keeney, S., & McKenna, H. (2000). Research guidelines for the Delphi survey technique. Journal of Advanced Nursing, 32(4), 1008–1015.	Couper, M. P. (2000). Web surveys: A review of issues and approaches. Public Opinion Quarterly, 64(4), 464–494.
Tên gọi khác	e-Delphi, electronic Delphi, web-based Delphi, internet Delphi	web survey, internet survey, e-survey, computer-assisted web interviewing
Liên quan	5	6
Tóm tắt	The Online Delphi Technique (e-Delphi) is an iterative, web-mediated consensus method in which a geographically dispersed panel of experts responds to successive rounds of structured questionnaires distributed and collected via email or a web platform. Anonymous feedback and controlled statistical summaries are fed back between rounds, guiding panellists toward convergence on priorities, predictions, or recommendations without the social pressures of face-to-face group discussion.	An online survey is a structured data collection instrument hosted on a web platform and completed by respondents via internet-connected devices. It enables large-scale, geographically dispersed data gathering at low cost and with rapid turnaround. Respondents self-administer the questionnaire at their convenience, which reduces interviewer bias and permits automatic data capture. Online surveys are the dominant mode of survey research in social, behavioural, health, and market research today.