The objective of most Delphi applications is the reliable and
creative exploration of ideas or the production of suitable information
for decision making [33]. The Delphi method is based on
a structured process for collecting and distilling knowledge from
a group of experts by means of a series of questionnaires interspersed
with controlled opinion feedback. The questionnaires are
designed to focus on problems, opportunities, solutions, or forecasts.
Each subsequent questionnaire is developed based on the
results of the previous questionnaire. The process stops when the
research question is answered