Table 2-1 in the textbook illustrates the difference in a typical project’s duration, person-months, quality, and cost, depending upon whether an organization’s system development process is at CMM level 1, 2, or 3. Between which two CMM levels does an organization gain the greatest benefit in terms of percentage of improvement?

What do you think is the reason for this?

Data from Table 2-1

TABLE 2-1 Impact of System Development "Process" on Quality CMM Project Statistics for a Project Resulting in 200,000 Lines of Code Organization's Project CMM Level Duration (months) 30.0 18.5 15.0 1 -23 Project Person- Months 600 143 80 Number of Defects Shipped 61 12 7 Median Cost ($ millions) 5.5 1.3 0.728 Lowest Cost ($ millions) 1.8 0.96 0.518 Highest Cost ($ millions) 100+ 1.7 0.933