So sánh phương pháp

	Kỹ thuật Delphi Từ xa	Khảo sát trực tuyến
Lĩnh vực	Phương pháp luận khảo sát	Phương pháp luận khảo sát
Họ	Process / pipeline	Process / pipeline
Năm ra đời	1950s (classic Delphi); remote/e-Delphi from late 1990s	Mid-1990s (widespread scholarly adoption ~1995–2000)
Người khởi xướng	Olaf Helmer and Norman Dalkey (RAND Corporation; classic Delphi); e-Delphi adapted by various methodologists from late 1990s onward	Mick P. Couper, Don A. Dillman (early systematic frameworks)
Loại	Iterative expert consensus technique — remote administration	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	online Delphi, e-Delphi, virtual Delphi, distributed Delphi	web survey, internet survey, e-survey, computer-assisted web interviewing
Liên quan	4	6
Tóm tắt	The Remote Delphi Technique applies the structured iterative consensus process of the classic Delphi method entirely through remote communication channels — email, web-based survey platforms, or dedicated collaboration tools — eliminating the need for geographic co-presence. Experts complete successive questionnaire rounds asynchronously, receiving anonymised statistical summaries of the group's prior responses before each new round, until a pre-defined consensus threshold is reached.	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.