Accession Number:

ADA055227

Title:

Software Reliability: Modelling Time-to-Error and Time-to-Fix.

Descriptive Note:

Master's thesis,

Corporate Author:

AIR FORCE INST OF TECH WRIGHT-PATTERSON AFB OHIO SCHOOL OF ENGINEERING

Personal Author(s):

Report Date:

1978-03-01

Pagination or Media Count:

182.0

Abstract:

Various competing software reliability models were tested using time-to-error data extracted from a large data base provided by Rome Air Development Center, RADC, Griffis AFB, N.Y. Only those models for which appropriate information was available from the RADC data base were used. Each model that was tested had its parameters estimated and discrimination between the models was performed by the Likelihood Ratio Test. Code for the computer program used in parameter estimation and Likelihood Ratio Testing is included. The same large data base was also used in determination of the probability density functions governing the random variable time-to-fix. Time-to-fix data was extracted from the data base and was sorted by error categories. Eleven of the more common probability density functions, along with the Kolmogorov-Smirnov Test and the Likelihood Ratio Test, were used to isolate the distribution that best modelled software time-to-fix for each particular data set.

Subject Categories:

  • Computer Programming and Software
  • Manufacturing and Industrial Engineering and Control of Production Systems

Distribution Statement:

APPROVED FOR PUBLIC RELEASE