CAPM Practice: Determine how to gather requirements

The Delphi technique gathers expert opinions anonymously across multiple rounds, sharing aggregated results after each round. Anonymity reduces groupthink and anchoring bias. It's used for requirements prioritization, risk assessment, or technical estimation.

**Why not B:** Rapid prototyping is a technique for building quick models of a solution to gather feedback, not for reaching expert consensus. The Delphi technique specifically uses iterative anonymous surveys among experts, which is fundamentally different from creating tangible prototypes for user evaluation.

**Why not C:** The Delphi technique is not a large workshop facilitation method. In fact, it deliberately avoids group settings to prevent dominant personalities from influencing results. Experts provide input independently and anonymously across multiple rounds, which distinguishes it from facilitated workshops or focus groups.

**Why not D:** User testing without guidance describes usability testing or exploratory testing, not the Delphi technique. The Delphi method is a structured estimation and consensus-building approach that relies on subject matter experts, not end users, and involves deliberate rounds of structured questioning.