Reliability Prediction of a Trajectory Verification System

Authors:
B. Cukic;D. Chakravarthy;D. McCaugherty
Affiliations:
-;-;-
Venue:
ASSET '98 Proceedings of the 1998 IEEE Workshop on Application - Specific Software Engineering and Technology
Year:
1998

Citing 5
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Abstract

The existence of software faults in safety-critical systems is not tolerable. Goals of software reliability assessment are estimating the failure probability of the program, 驴, and gaining statistical confidence that 驴 is realistic.The paper presents practical problems and challenges encountered in an ongoing effort to assess and quantify software reliability of NASA's Day-of-Launch I-Load Update (DOLILU II) system. DOLILU II system has been in operational use for several years. Bayesian framework is chosen for reliability assessment, because it allows incorporation of failure free executions, observed in the operational environment, into the reliability prediction.