NDLI: Software reliability report

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Software reliability report

Content Provider	NASA Technical Reports Server (NTRS)
Author	Wilson, Larry
Copyright Year	1991
Description	There are many software reliability models which try to predict future performance of software based on data generated by the debugging process. Unfortunately, the models appear to be unable to account for the random nature of the data. If the same code is debugged multiple times and one of the models is used to make predictions, intolerable variance is observed in the resulting reliability predictions. It is believed that data replication can remove this variance in lab type situations and that it is less than scientific to talk about validating a software reliability model without considering replication. It is also believed that data replication may prove to be cost effective in the real world, thus the research centered on verification of the need for replication and on methodologies for generating replicated data in a cost effective manner. The context of the debugging graph was pursued by simulation and experimentation. Simulation was done for the Basic model and the Log-Poisson model. Reasonable values of the parameters were assigned and used to generate simulated data which is then processed by the models in order to determine limitations on their accuracy. These experiments exploit the existing software and program specimens which are in AIR-LAB to measure the performance of reliability models.
File Size	4901601
Page Count	222
File Format	PDF
Alternate Webpage(s)	http://archive.org/details/NASA_NTRS_Archive_19920012098
Archival Resource Key	ark:/13960/t3hx67z7p
Language	English
Publisher Date	1991-01-01
Access Restriction	Open
Subject Keyword	Computer Programming And Software Checkout Cost Effectiveness Performance Prediction Reliability Analysis Reliability Engineering Computerized Simulation Computer Programs Program Verification Computers Software Engineering Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science
Content Type	Text
Resource Type	Technical Report

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