Give the procedure of the Delphi method.
1. The co-ordinator presents a specification and estimation form to all experts.
2. Co-ordinator calls a group meeting where the experts talk about estimation issues with the coordinator and each other.
3. Experts fill out forms secretly.
4. Co-ordinator prepares and distributes a précis of the estimates.
5. The Co-ordinator again calls a group meeting. In this meeting the experts mostly discuss the points where their estimates vary widely.
6. The experts again fill out forms namelessly.
7. Again co-ordinator edits and précis the forms, repeating steps 5 and 6 until the co-ordinator is satisfied with the overall prediction synthesized from experts.