GL-10                           Estimation Method 4: Wide Band Delphi Technique                      Revision 0

                     Estimation method 4:
              Wide Band Delphi Technique

1. Objective 

To define an estimation method using Wide Band Delphi Technique.

2. Scope

This guideline is applicable for all estimations using the above method.

3. Use

To predict the size of a software product at the end of analysis process.

4. Inputs

Software Requirement Specifications (SRS).

5. Steps

5.1 A group of two to five experts is selected to participate in the exercise.

5.2 Each expert is presented with the SRS and the Delphi Size Estimate Iteration 
      Form. 

5.3 All the experts meet to discuss the application issues related to size.

5.4 Each expert produces an estimate using any agreed estimation method and records
      the estimation form anonymously.

5.5 The coordinator competes the second part of the Delphi Size Estimate Iteration
       Form.

5.6 The experts meet to discuss the highest and lowest estimates. The identities of the
      estimators giving these estimates are not disclosed.

5.7 If there is no consensus on the lowest possible and the highest possible estimates,  
      the process is continued from step 5.3

6. Outputs

• Maximum Estimate
• Minimum Estimate
• Median Estimate