NDLI: Achieving reliability growth on real-time systems

Content Provider	IEEE Xplore Digital Library
Author	Lane, C.A. Morrison, J.D.
Copyright Year	1994
Description	Author affiliation: IBM Corp., Rockville, MD, USA (Lane, C.A.; Morrison, J.D.)
Abstract	This paper addresses the principles used to predict and attain reliability growth on real-time systems. System reliability modeling techniques that include software reliability, maintenance effectiveness, and failure recovery are discussed in detail. Several software reliability growth models are discussed with emphasis on measured reliability growth of fielded software. The impact of maintenance effectiveness, which is a measure of the maintainer's skill and training levels, is shown. The need to develop and measure the robustness of failure recovery algorithms is emphasized in this paper. All of these factors are combined with the failure and repair characteristics of hardware to create comprehensive reliability growth models for real-time systems. Through the authors' research, they have determined that effective failure recovery algorithms are the key to attaining highly reliable systems. Without them, redundant computer systems that run banking and air traffic control systems will come crashing down with possibly disastrous results. The modeling and measurement techniques discussed in this paper provide the reliability practitioner with the methods to predict and achieve reliability growth resulting from improved software reliability and recovery algorithms. A fault tolerant system's ability to recover from hardware and software failures is gauged by a parameter called coverage. Coverage is the conditional probability of recovery given that a failure has occurred. Because of its huge impact on system reliability, the measurement of coverage is emphasized.
Starting Page	136
Ending Page	141
File Size	617176
Page Count	6
File Format	PDF
ISBN	0780317866
DOI	10.1109/RAMS.1994.291096
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1994-01-24
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Real time systems Software reliability Hardware Software maintenance Software measurement Robustness Banking Air traffic control Computer crashes Predictive models
Content Type	Text
Resource Type	Article

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1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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