Date of Award
Master of Science in Cost Analysis
Daniel V. Ferens, PhD
This study examined the change in performance resulting from calibration of the REVIC software cost model and whether calibration improved the model's ability to estimate software development costs. Three calibrations were conducted on two operating environments using the SMC database. The calibrations consisted of one coefficient only and two coefficient and exponent calibrations, using different procedures. Analysis of the goodness of fit" was accomplished using MRE, MMRE, RMS, RRMS, and the prediction test to measure the model's improvement in predicting ability. The Wilcoxon and Wilk-Shapiro tests were used to test for normality of the sample data. The author concluded that the REVIC model's predicting ability is insufficient when more than one independent variable is impacting cost. IR the case of the two operating environments selected, military ground and unmanned space, the improvement in the estimating ability of the model, following calibration, was insufficient to predict cost in either the military ground or the unmanned space environment within an acceptable confidence level.
DTIC Accession Number
Weber, Betty G., "A Calibration of the Revic Software Cost Estimating Model" (1995). Theses and Dissertations. 6516.