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Calibration And Validation Of The Cocomo Ii.1997.0 Cost/Schedule Estimating Model To The Space And Missile Systems Center Database, Wayne A. Bernheisel
Calibration And Validation Of The Cocomo Ii.1997.0 Cost/Schedule Estimating Model To The Space And Missile Systems Center Database, Wayne A. Bernheisel
Theses and Dissertations
The goal of this study was to determine the accuracy of COCOMO II.1997.0, a software cost and schedule estimating model, using Magnitude of Relative Error, Mean Magnitude of Relative Error, Relative Root Mean Square, and a 25 percent Prediction Level. Effort estimates were completed using the model in default and in calibrated mode. Calibration was accomplished by dividing four stratified data sets into two random validation and calibration data sets using five times resampling. The accuracy results were poor; the best having an accuracy of only .3332 within 40 percent of the time in calibrated mode. It was found that …
Calibration And Validation Of The Sage Software Cost/Schedule Estimating System To United States Air Force Databases, David B. Marzo
Calibration And Validation Of The Sage Software Cost/Schedule Estimating System To United States Air Force Databases, David B. Marzo
Theses and Dissertations
This research entailed calibration and validation of the SAGE Software Cost/Schedule Estimating System, Version 1.7 as a means to improve estimating accuracy for DoD software-intensive systems, and thereby introduce stability into software system development. SAGE calibration consisted of using historical data from completed projects at the Space and Missile Systems Center (SMC) and the Electronic Systems Center (ESC) to derive average performance factors (i.e., calibration factors) for pre-defined categories of projects. A project was categorized for calibration by either its primary application or by the contractor that developed it. The intent was to determine the more appropriate categorization for calibration. …