Reliability demonstration for safety-critical systems

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Tal, O ; McCollin, C ; Bendell, T (2001)

This paper suggests a new model for reliability demonstration of safety-critical systems, based on the TRW Software Reliability Theory. The paper describes the model; the test equipment required and test strategies based on the various constraints occurring during software development. The paper also compares a new testing method, Single Risk Sequential Testing (SRST), with the standard Probability Ratio Sequential Testing method (PRST), and concludes that: • SRST provides higher chances of success than PRST • SRST takes less time to complete than PRST • SRST satisfies the consumer risk criterion, whereas PRST provides a much smaller consumer risk than the requirement.
  • References (4)

    [1] [2] [3] [4] US Department of Defense. MIL-HDBK-781A: Handbook for Reliability Test Methods, Plans and Environments for Engineering, Development Qualification, and Production. 1996.

    I.D. Hill. An Introduction to Sampling Inspection. Monograph 62/1. The Institution of Engineering Inspection. 1960.

    US Government Printing Office. MIL-STD-105D. Sampling Procedures and Tables for Inspection by Attributes. 1958.

    British Standards Institute. BS6001: Parts 0-3 (ISO 2859) Sampling Procedures for Inspection by Attributes. 1996.

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