Question

Difference between problem based and process based estimation wiki

Answer 1

Estimation: The process approximating a value that can be used even if the data may be incomplete or unstable is referred to as estimation.

Problem based estimation:

• Begins with a statement of scope.
• The software is decomposed into problem functions.
• Estimating FP or LOC.
• Combine those estimates and produce an overall estimate.

Process based estimation:

• The functions of the software are identified.
• The framework is formulated.
• Estimate effort to complete each software function.
• Apply average labor rates, compute the total cost and compare the estimates.