Involves the process of group members submitting solutions anonymously for analysis and then revising them from feedback. ps2100

The process wherein it involves the circulation of questionnaires among the group members about a specific problem that they want to tackle is termed as the Delphi Technique. The group members should share the results within the circle then they should continue to recirculate and refine individual responses until a consensus regarding  the problem is reached.
Having the direct opposite technique with the nominal group technique or the  brainstorming, Delphi technique does not require group members to meet face to face.
These are the steps in taking the Delphi technique. The first step is identifying the problem. Next is, the group members shall then be asked to offer their solutions anonymously. They should answer the carefully designed questionnaires. Third, all the answers of all the members are then compiled and are also sent to all members in the group. After each of the members has already carefully evaluated each of the group member’s answers, they are then asked to generate new individual solutions. Lastly, until a consensus problem solution is arrived, steps 3 and 4 will be done repeatedly. 
The advantage of practicing the Delphi technique is they do not have to meet face to face. This is important to those members who are geographically separated or to those who are too busy to meet.

The holy roman empire.

Pilgrims is the answer