The traditional calculation for effort (regardless of size) based on the Traditional Life Cycle that illustrated in Figure 2 takes 11.25 unit of efforts.
The changed approach life cycle is fundamentally founded on the employment of a business information system generator that enables four or more cycles of business information system prototyping, which, in turn, surfaces changes that are accomplished prior to a first production implementation.
The introduction of business information system prototyping reduces the overall life cycle effort to just 3.9 units of effort.
The ROI created from the traditional approach effort to the changed approach effort is 2.8. That is a dramatic reduction in effort.