12.2 CMMI Benefit Methodology

11.4 ISO 9001 ROI% Methodology

The ROI% methodology for ISO 9001 is a procedure to measure, quantify, and analyze the money returned. The ratio of net benefits to costs for ISO 9001 is moderate due to software maintenance cost savings and minor productivity increases . ROI% is the money earned from using ISO 9001 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 ISO 9001. ROI% for ISO 9001 may be increased dramatically by the optimization of strategic clauses or process areas. (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 57 illustrates the ROI% methodology for ISO 9001.

Figure 57: ROI% Methodology for ISO 9001

Estimate adjusted benefits for ISO 9001: The objective of this activity is to validate the benefits of ISO 9001 by removing its costs. This substep includes: subtract special costs from benefits for ISO 9001.

Estimate adjusted B/CR for ISO 9001: The objective of this activity is to measure the magnitude of the net benefits to the costs for implementing ISO 9001. This substep includes: divide adjusted benefits by special costs for ISO 9001.