Advantages of wideband delphi.1. Implementation is easy and inexpensive.
2. It uses expertise of various people.
3. All participants become better educated about the software
4. Doesn't need historical data.
5. Used for high level and detailed estimation
6. More accurate results than LOC.
7. An iterative approach is used to reach a consensus on the estimates.
8. Opinions are contributed by those who are not willing to speak by completing forms anonymously.
9. While conducting the estimation process most of the participants are adapted to the aspects of the project.