11.2 ISO 9001 Benefit Methodology

10.4 SW-CMM ROI% Methodology

The ROI% methodology for the Software Capability Maturity Model is a procedure to measure, quantify, and analyze the money returned. The ratio of net benefits to costs for the Software Capability Maturity Model is high due to software maintenance cost savings. ROI% is the money earned from using the Software Capability Maturity Model to create a new and improved software process. Its ROI% methodology is a two-part process that consists of estimating the B/CR using net benefits versus gross benefits. Its benefit methodology consists of combining the net or adjusted benefits together with the special costs using the B/CR formula. Key elements include subtracting the special costs from the gross benefits to form net benefits. These are used to form a better picture of the magnitude of the benefits to the costs for the Software Capability Maturity Model . (B/CR and ROI% are similar in that they are used to compare benefits to costs. However, B/CR uses gross benefits, while ROI% uses net benefits. Net benefits do not contain the implementation costs. Therefore, ROI% lowers the magnitude of benefits to costs versus using B/CR.) Figure 50 illustrates the ROI% methodology for the Software Capability Maturity Model .

Figure 50: ROI% Methodology for Software Capability Maturity Model

Estimate adjusted benefits for SW-CMM : The objective of this activity is to validate the benefits of SW-CMM by removing its costs. This substep includes: subtract special costs from benefits for SW-CMM .

Estimate adjusted B/CR for SW-CMM : The objective of this activity is to measure the magnitude of the net benefits to the costs for implementing SW-CMM . This substep includes: divide adjusted benefits by special costs for SW-CMM .