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IEEE Transactions on Reliability

Issue 2 • Date June 2003

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Displaying Results 1 - 20 of 20
  • Commentary: steady-state series-system availability

    Publication Year: 2003, Page(s):146 - 147
    Cited by:  Papers (10)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (169 KB) | HTML iconHTML

    Computation of steady-state series-system availability depends on specific assumptions made about the nonfailed components during the system failure. Sherwin recently made the case that the steady-state availability in a series-system is not calculated using the product rule. This commentary offers a clarification by illustrating 2 cases of steady-state series-system availability that frequently a... View full abstract»

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  • Commentary: Material Review Board in 2003

    Publication Year: 2003, Page(s): 148
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    Freely Available from IEEE
  • Commentary: real education

    Publication Year: 2003, Page(s): 149
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (143 KB) | HTML iconHTML

    In general, we don??t really know the real world and all the ways in which hardware and software will be used (and misused). We are pretty naive when we think we can simulate the real world. Rather than let failures happen in the field, it is urged that one should find weaknesses in the lab, ideally as part of development. View full abstract»

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  • Tutorial papers and opinion items

    Publication Year: 2003, Page(s): 270
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    Freely Available from IEEE
  • Confidence intervals for reliability-growth models with small sample-sizes

    Publication Year: 2003, Page(s):257 - 262
    Cited by:  Papers (8)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (431 KB) | HTML iconHTML

    Fully Bayesian approaches to analysis can be overly ambitious where there exist realistic limitations on the ability of experts to provide prior distributions for all relevant parameters. This research was motivated by situations where expert judgement exists to support the development of prior distributions describing the number of faults potentially inherent within a design but could not support... View full abstract»

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  • Reliability evaluation for acyclic transmission networks of multi-state elements with delays

    Publication Year: 2003, Page(s):231 - 237
    Cited by:  Papers (9)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (586 KB) | HTML iconHTML

    Acyclic transmission networks (ATN) consist of a number of positions in which s-independent multi-state elements (ME) capable of receiving and/or sending a signal are allocated. Each network has: a root position where the signal source is located, a number of terminal positions that can only receive a signal, and a number of intermediate positions containing ME that retransmit the received signal ... View full abstract»

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  • Stochastic programming models for general redundancy-optimization problems

    Publication Year: 2003, Page(s):181 - 191
    Cited by:  Papers (21)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (694 KB) | HTML iconHTML

    This paper provides a unified modeling idea for both parallel and standby redundancy optimization problems. A spectrum of redundancy stochastic programming models is constructed to maximize the mean system-lifetime, α-system lifetime, or system reliability. To solve these models, a hybrid intelligent algorithm is presented. Some numerical examples illustrate the effectiveness of the proposed... View full abstract»

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  • Reliable broadcasting in wormhole-routed hypercube-connected networks using local safety information

    Publication Year: 2003, Page(s):245 - 256
    Cited by:  Papers (7)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (605 KB) | HTML iconHTML

    This paper presents a method to cope with reliable broadcasting in faulty hypercubes using local safety information. A new definition, broadcast subcube, is introduced, with which various techniques are proposed to improve performance of the broadcast algorithm. Local safety information is well used in the fault-tolerant broadcast algorithm by considering only safety of the broadcast subcube. An u... View full abstract»

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  • Approximate sensitivity analysis for acyclic Markov reliability models

    Publication Year: 2003, Page(s):220 - 230
    Cited by:  Papers (14)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (605 KB) | HTML iconHTML

    Acyclic Markov chains are frequently used for reliability analysis of nonmaintained mission-critical computer-based systems. Since traditional sensitivity (or importance) analysis using Markov chains can be computationally expensive, an approximate approach is presented which is easy to compute and which performs quite well in test cases. This approach is presented in terms of a Markov chain which... View full abstract»

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  • Toward an efficient implementation of the MOCUS algorithm

    Publication Year: 2003, Page(s):175 - 180
    Cited by:  Papers (7)  |  Patents (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (332 KB) | HTML iconHTML

    MOCUS is probably the most famous algorithm to compute minimal cutsets of fault trees. It was proposed by Fussell and Vesely in 1972. It is now the core method of many fault-tree assessment tools. Despite its wide use, textbooks and articles give very few details about how to implement it. This paper describes data structures as well as several improvements and heuristics that make MOCUS very effi... View full abstract»

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  • The recursive variance-reduction simulation algorithm for network reliability evaluation

    Publication Year: 2003, Page(s):207 - 212
    Cited by:  Papers (34)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (517 KB) | HTML iconHTML

    This paper proposes a new formulation of the recursive variance-reduction Monte Carlo estimator of the κ terminal unreliability parameter of communication systems. This formulation allows significant reduction in the simulation execution time, as demonstrated by experimental results. View full abstract»

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  • Integrity-based self-validation test scheduling

    Publication Year: 2003, Page(s):162 - 167
    Cited by:  Papers (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (380 KB) | HTML iconHTML

    Intelligent sensors use functional self-testing to confirm measurement validity; this introduces the potential for false diagnosis and unnecessary corrective intervention. For a sensor in an integrity-monitoring context, it is desirable to select a test-interval to minimize the probability of faulty operation between discrete tests. The scheduling of discrete test intervals is examined as an optim... View full abstract»

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  • Linear multi-state sliding-window systems

    Publication Year: 2003, Page(s):263 - 269
    Cited by:  Papers (24)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (484 KB) | HTML iconHTML

    This paper proposes a new model that generalizes the consecutive k-out-of-r-from-n:F system to the multi-state case. In this model (linear multi-state sliding window system), the system consists of n linearly ordered multi-state elements. Each element can have various states: from complete-failure up to perfect-functioning. A performance rate is associated with each state. The sliding window syste... View full abstract»

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  • Availability requirement for a fault-management server in high-availability communication systems

    Publication Year: 2003, Page(s):238 - 244
    Cited by:  Papers (5)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (430 KB) | HTML iconHTML

    This paper investigates the availability requirement for the fault management server in high-availability communication systems. This study shows that the availability of the fault management server does not need to be 99.999% in order to guarantee a 99.999% system availability, as long as the fail-safe ratio (the probability that the failure of the fault management server does not bring down the ... View full abstract»

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  • Optimal allocation of multistate elements in a linear consecutively-connected system

    Publication Year: 2003, Page(s):192 - 199
    Cited by:  Papers (21)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (507 KB) | HTML iconHTML

    A linear consecutively-connected system consists of N+1 linear ordered positions. M s-independent multistate elements with different characteristics are to be allocated to the first N positions. Each element can provide a connection between the position to which it is allocated and the next few positions. The reliability of the connection for any given element depends on: (1) the position to which... View full abstract»

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  • Birnbaum's measure of component importance for noncoherent systems

    Publication Year: 2003, Page(s):213 - 219
    Cited by:  Papers (45)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (405 KB) | HTML iconHTML

    Importance analysis of noncoherent systems is limited, and is generally inaccurate because all measures of importance that have been developed are strictly for coherent analysis. This paper considers the probabilistic measure of component importance developed by Birnbaum (1969). An extension of this measure is proposed which enables noncoherent importance analysis. As a result of the proposed exte... View full abstract»

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  • A birth-process approach to Moranda's geometric software-reliability model

    Publication Year: 2003, Page(s):168 - 174
    Cited by:  Papers (16)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (467 KB) | HTML iconHTML

    To alleviate some of the objections to the basic Jelinski Moranda (JM) model for software failures, Moranda proposed a geometric de-eutrophication model. This model assumes that the times between failures are statistically-independent exponential random variables with given failure rates. In this model the failure rates decrease geometrically with the detection of a fault. Using an intuitive appro... View full abstract»

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  • Order statistics from a logistic distribution and applications to survival and reliability analysis

    Publication Year: 2003, Page(s):200 - 206
    Cited by:  Papers (6)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (554 KB) | HTML iconHTML

    Joint moments involving arbitrary powers of order statistics are the main concern. Consider order statistics u1 ≤ u2 ≤ ··· ≤ uk coming from a simple random sample of size n from a real continuous population where u1 = xr(1):n is order-statistic #r1, u2 = xr(1)+r(2):n is order stati... View full abstract»

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  • New better than renewal-used classes of life distributions

    Publication Year: 2003, Page(s):150 - 153
    Cited by:  Papers (4)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (346 KB) | HTML iconHTML

    The concept of stochastic dominance in economics is used to compare the conditional life distribution of a used device that has lived until time t≥0 and its life distributions at time t=0. This comparison gives two classes of life distributions namely, the NBRU class of life distribution and its dual. Relations of these classes to existing criteria of aging and some of their closure properties ... View full abstract»

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  • Formulas for the distribution of sums of independent exponential random variables

    Publication Year: 2003, Page(s):154 - 161
    Cited by:  Papers (6)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (628 KB) | HTML iconHTML

    This paper derives a new type of formula for the probability that, among a collection of items with s-independent exponential times to failure, a certain subset of them fails in a given order before a certain time, and all the remaining items survive beyond that time. This formula is in the form of a power series that satisfies a certain constant coefficient linear differential equation with speci... View full abstract»

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Aims & Scope

IEEE Transactions on Reliability is concerned with the problems involved in attaining reliability, maintaining it through the life of the system or device, and measuring it.

Full Aims & Scope

Meet Our Editors

Editor-in-Chief
W. Eric Wong
University of Texas at Dallas
Advanced Res Ctr for Software Testing and Quality Assurance

ewong@utdallas.edu