The technique is defined by several unique features that distinguish it from standard focus groups:
: Experts respond individually and their identities are typically kept from one another, which helps prevent the "halo effect" where high-ranking members might unfairly influence others. Delphi
: After each round, a facilitator provides a summary of the group’s views, enabling experts to reconsider their judgments based on the collective reasoning. The technique is defined by several unique features