Chapter 11: ISO 9001 ROI Methodology


10.3 SW-CMM B/CR Methodology

The B/CR methodology for the Software Capability Maturity Model is a procedure to measure, quantify, and analyze the ratio of benefits to costs. The ratio of benefits to costs for the Software Capability Maturity Model is high because of productivity increases and reductions in software maintenance costs. In fact, the majority of the benefits are due to the institutionalization of peer reviews or the Software Inspection Process. Higher quality and lower maintenance costs result from using peer reviews. A small part of the benefits are derived from increased productivity. Adherence to U.S. Department of Defense policy for supplier selection results from using the Software Capability Maturity Model . B/CR is the economic magnitude of using the Software Capability Maturity Model to create a new and improved software process. Its B/CR methodology is a two-part process that consists of estimating special costs and the B/CR. Its benefit methodology consists of combining the benefits together with the special costs using a simple B/CR formula. Key elements include isolating the special, new, or additional costs and using the output of earlier total life cycle cost models. These are used to form an early picture of the economic value of the Software Capability Maturity Model . Figure 49 illustrates the B/CR methodology for the Software Capability Maturity Model .

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Figure 49: B/CR Methodology for Software Capability Maturity Model

Estimate special costs for SW-CMM : The objective of this activity is to identify and separate the costs associated with SW-CMM from common software development costs. This substep includes: add process, product, preparation, assessment, and meeting costs for SW-CMM .

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




ROI of Software Process Improvement. Metrics for Project Managers and Software Engineers
ROI of Software Process Improvement: Metrics for Project Managers and Software Engineers
ISBN: 193215924X
EAN: 2147483647
Year: 2004
Pages: 145

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