The Wideband Delphi technique is a collaborative estimation method used in project management to forecast task durations, costs, or risks by leveraging expert judgment. This technique is an enhanced version of the Delphi method, where multiple rounds of anonymous feedback help refine estimates.
Process:
- A facilitator gathers experts and presents the task to be estimated.
- Experts provide individual estimates anonymously.
- The estimates are shared, and a discussion follows to refine assumptions.
- The process repeats until consensus is reached.
Why It’s Useful:
✔ Reduces groupthink and bias by maintaining anonymity.
✔ Leads to more accurate estimates by incorporating diverse expertise.
✔ Useful for highly uncertain projects where data is limited.
Challenges:
⚠ Can be time-intensive if too many iterations are required.
⚠ Requires a skilled facilitator to manage discussions.
