7.6 Inspection Breakeven Point Methodology


7.2 Inspection Benefit Methodology

The benefit methodology for the Software Inspection Process is a procedure to measure, quantify, and analyze the amount of money returned. The Software Inspection Process eliminates defects early, when they are least expensive, resulting in lower maintenance costs. Benefit is the economic value of using the Software Inspection Process to create a new and improved software process. Its benefit methodology is a three-part process that consists of estimating test costs, total life cycle costs of testing, and benefits. Its benefit methodology consists of a variety of defect models used in combination. Key elements include the test cost model and the total life cycle cost model. These are used to compare the total life cycle costs of software testing to those of the Software Inspection Process. Figure 27 illustrates the benefit methodology for the Software Inspection Process.

click to expand
Figure 27: Benefit Methodology for Software Inspection Process

Estimate test cost (baseline) for inspection: The objective of this activity is to estimate the cost of removing the maximum number of software defects using software testing. The substeps include: estimate post-test defects (baseline) for inspection; and estimate baseline test cost ( projected ) for inspection.

Estimate total life cycle cost (test) for inspection: The objective of this activity is to estimate software development and maintenance costs associated with using software testing. The substeps include: estimate total software cost (test) for inspection; estimate total test cost (test) for inspection; and subtract total test from software cost for inspection.

Estimate benefits (projected) for inspection: The objective of this activity is to compare software development and maintenance costs of testing and the Software Inspection Process. This substep includes: subtract total life cycle cost of inspection from test for inspection.




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

flylib.com © 2008-2017.
If you may any questions please contact us: flylib@qtcs.net