Accession Number : ADA102105


Title :   Discrete Address Beacon System (DABS) Software System Reliability Modeling and Prediction.


Descriptive Note : Final rept. Jan 79-Jun 80.


Corporate Author : EVALUATION ASSOCIATES INC BALA CYNWYD PA


Full Text : https://apps.dtic.mil/dtic/tr/fulltext/u2/a102105.pdf


Report Date : Jun 1981


Pagination or Media Count : 64


Abstract : This report contains the results of a pilot study accomplished to demonstrate the ability to determine the magnitude of software reliability encountered in large-scale computer-based equipment. The engineering model of the Discrete Address Beacon System (DABS) currently undergoing development was used as the subject. Based on software failure and test time data, a software reliability model was developed for the engineering model of DABS and used to measure software reliability and its growth during the debugging process. The software reliability model was merged with the hardware reliability model into a DABS system model suitable for prediction. The Mean Time Between Failures (MTBF) determined by this study applies only to an early version of the software associated with the engineering model of the DABS. The report also includes recommendations for the specification of software reliability and the modification to the failure reporting system.


Descriptors :   *COMPUTER PROGRAMMING , *MATHEMATICAL PREDICTION , *COMPUTER PROGRAM RELIABILITY , *DISCRETE ADDRESS BEACON SYSTEMS , DATA BASES , STOCHASTIC PROCESSES , MODELS , RANDOM VARIABLES , STATISTICAL DATA , FAILURE , ERROR ANALYSIS , MEAN , DEBUGGING(COMPUTERS)


Subject Categories : Statistics and Probability
      Computer Programming and Software


Distribution Statement : APPROVED FOR PUBLIC RELEASE