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From the 1970s, the use of the Delphi technique in public policy-making introduces a number of methodological innovations. In particular:
* the need to examine several types of items (not only ''forecasting'' items but, typically, ''issue'' items, ''goal'' items, and ''option'' items) leads to introducing different evaluation scales which are not used in the standard Delphi. These often include ''desirability'', ''feasibility'' (technical and political) and ''probability'', which the analysts can use to outline different scenarios: the ''desired'' scenario (from desirability), the ''potential'' scenario (from feasibility) and the ''expected'' scenario (from probability);
* the complexity of issues posed in public policy-making tends to increase weighting of panelists’ arguments, such
* likewise, methods measuring panel evaluations tend to
Further innovations come from the use of computer-based (and later web-based) Delphi conferences. According to Turoff and Hiltz,<ref>{{cite book | vauthors = Turoff M, Hiltz SR | chapter = Computer based Delphi processes. | veditors = Adler M, Ziglio E| title = Gazing into the oracle: The Delphi method and its application to social policy and public health. | date = 1996 | pages = 56–85 }}</ref> in computer-based Delphis:
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