Structured consensus-based estimation technique where experts independently provide estimates, then iteratively refine them through facilitated discussion until convergence. Developed in the 1970s, this method reduces individual bias while leveraging collective expertise.
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Wideband Delphi
Wideband Delphi is a group-based estimation technique that combines expert judgment with structured iteration to produce accurate project estimates. Unlike traditional Delphi methods where experts never meet, Wideband Delphi includes group discussion to accelerate consensus.
Ideal for large, complex, or high-risk projects where estimation accuracy is critical. Particularly valuable when:
Many teams use simplified versions:
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