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

Abstract

This study was a calibration, validation and comparison of four software effort estimation model. 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 uncalibratable 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.

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Document Details

Document Type
Technical Report
Publication Date
Dec 01, 1991
Accession Number
ADA246677

Entities

People

  • Gerald L. Ourada

Organizations

  • Air Force Institute of Technology

Tags

Communities of Interest

  • Autonomy
  • Materials and Manufacturing Processes
  • Space
  • Weapons Technologies

DTIC Thesaurus Topics

  • Accuracy
  • Air Force
  • Application Software
  • Calibration
  • Computer Programming
  • Computer Programs
  • Computers
  • Databases
  • High Level Languages
  • Measurement
  • Procurement
  • Software Design
  • Software Development
  • Space Systems
  • System Software
  • Systems Engineering
  • Test And Evaluation

Fields of Study

  • Agricultural and Food sciences
  • Computer science

Readers

  • Computational Modeling and Simulation
  • Nuclear Civil Defense.
  • Software Engineering.

Technology Areas

  • Space