Software Cost Estimating Models: A Calibration, Validation, and Comparison

Author

Gerald L. Ourada

Date of Award

12-1991

Document Type

Thesis

Degree Name

Master of Science

First Advisor

Daniel Ferens

Abstract

This study was a calibration, validation and comparison of four software effort estimation models. The four models evaluated were REVIC, SASET, SEER, and COSTMODL. A historical database was obtained from Space Systems Division, in Los Angeles, and used as the input data. Two software environments were selected, one used to calibrate and validate the models outside their environment of calibration. REVIC and COSTMODL are COCOMO derivatives and were calibrated using Dr. Boehm's procedure. SASET and SEER were found to be un-calibratable for this effort. Accuracy of all the models was significantly low; none of the models performed better against the comparison data than the data from the calibration. SASET and SEER were very inconsistent across both environments.

AFIT Designator

AFIT-GSS-LSY-91D-11

DTIC Accession Number

ADA246677

Comments

The author's Vita page is omitted.

Presented to the Faculty of the School of Systems and Logistics

Recommended Citation

Ourada, Gerald L., "Software Cost Estimating Models: A Calibration, Validation, and Comparison" (1991). Theses and Dissertations. 7437.
https://scholar.afit.edu/etd/7437