The benefits of using Capability Maturity Model Integration to help produce 10,000 lines of code are $3,023,064. This was obtained by subtracting $1,486,933 in new total life cycle costs from $4,509,997 in old total life cycle costs.
The special, new, or additional costs that are required consist of process, product, preparation, assessment, and inspection costs. The special costs to use Capability Maturity Model Integration are $541,300, $400,400, $48,000, $47,700, and $70,833, respectively. This totals $1,108,233 to introduce Capability Maturity Model Integration as a SPI method.
The development cost of $254,400, testing cost of $195,000, and maintenance cost of $966,700 were not included as special costs. The development, testing, and maintenance costs either stayed the same or decreased. Had the development, testing, or maintenance costs increased, the differences or the increases would have been included.
Let's determine the B/CR of Capability Maturity Model Integration to help produce 10,000 lines of code. Divide the benefits of $3,023,064 by the costs of $1,108,233 for Capability Maturity Model Integration . The B/CR of using Capability Maturity Model Integration to help produce 10,000 lines of code is 3:1.
However, the benefits of Capability Maturity Model Integration must be adjusted, by first removing the costs. That is, the costs of inserting Capability Maturity Model Integration as a SPI method must first be removed from the gross benefits. We will call these the adjusted benefits of Capability Maturity Model Integration . Subtract $1,108,233 in Capability Maturity Model Integration costs from $3,023,064 in gross Capability Maturity Model Integration benefits. The result is $1,914,831 in adjusted benefits. Table 25 illustrates the ROI of Capability Maturity Model Integration .
SPI Method | Benefits/Costs |
---|---|
CMMI Benefits (Gross) | $3,023,064 |
CMMI Costs | $1,108,233 |
CMMI B/CR | 3:1 |
CMMI Benefits (Adjusted) | $1,914,831 |
ROI | 173% |
Now we're ready to determine the ROI of Capability Maturity Model Integration to help produce 10,000 lines of code. Divide the adjusted benefits of $1,914,831 by the costs of $1,108,233 for Capability Maturity Model Integration . Multiply the result by 100%. The ROI of using Capability Maturity Model Integration to help produce 10,000 lines of code is 173%.