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IEEE Transactions on Reliability

Issue 3 • Sept. 1995

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Displaying Results 1 - 24 of 24
  • The failure rate of software: does it exist?

    Publication Year: 1995, Page(s):463 - 469
    Cited by:  Papers (7)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (791 KB)

    This paper first overviews some foundation issues in reliability and argues that generally, it does not make mathematical sense to talk about the failure rate of a piece of software. Furthermore, even when it does make sense, the failure rate is personal, and does not exist outside of the software engineer's mind. Also discussed are matters pertaining to what constitutes a software reliability mod... View full abstract»

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  • Evaluating processor-behavior and three error-detection mechanisms using physical fault-injection

    Publication Year: 1995, Page(s):441 - 454
    Cited by:  Papers (26)  |  Patents (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1248 KB)

    An approach for assessing the impact of physical injection of transient faults on processor execution is described and evaluated. The fault injection is based on two complementary methods using: (1) heavy-ion radiation; and (2) power supply disturbances. 12000 transient faults were injected into the target microprocessor, a Motorola MC6809E 8-bit CPU, running 3 different workloads. In the evaluati... View full abstract»

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  • Bathtub failure rate and upside-down bathtub mean residual life

    Publication Year: 1995, Page(s):388 - 391
    Cited by:  Papers (7)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (268 KB)

    This paper shows that: (1) the mean residual life (MRL) of a component has an upside-down bathtub-shape if the component has a bathtub-shape failure-rate function, but the converse does not hold; and (2) there is an optimal burn-in policy to maximize the MRL when the underlying lifetime distribution has a bathtub-shape failure rate View full abstract»

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  • Dependability modeling using Petri-nets

    Publication Year: 1995, Page(s):428 - 440
    Cited by:  Papers (47)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (972 KB)

    This paper describes a methodology to construct dependability models using generalized stochastic Petri nets (GSPN) and stochastic reward nets (SRN). Algorithms are provided to convert a fault tree (a commonly used combinatorial model type) model into equivalent GSPN and SRN models. In a fault-tree model, various kinds of distributions can be assigned to components such as defective failure-time d... View full abstract»

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  • A design technique for reliable networks under a nonuniform traffic distribution

    Publication Year: 1995, Page(s):377 - 387
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (796 KB)

    Many network-reliability analysis techniques define and compute a variety of reliability measures. Most techniques assume that network connectivity is the only determining factor in network reliability; and merely analyze an existing network structure but do not provide any methodology for reliable design. This paper presents a heuristic design algorithm to enhance the reliability of existing comm... View full abstract»

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  • Maximum likelihood voting for fault-tolerant software with finite output-space

    Publication Year: 1995, Page(s):419 - 427
    Cited by:  Papers (14)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (512 KB)

    When the output space of a multiversion software is finite, several software versions can give identical but incorrect outputs. This paper proposes a maximum likelihood voting (MLV) strategy for multiversion software with finite output-space under the assumption of failure independence. To estimate the correct result, MLV uses the reliability of each software version and determines the most likely... View full abstract»

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  • Interval estimation from a life-test through a sequential Kolmogorov-Smirnov type procedure

    Publication Year: 1995, Page(s):470 - 476
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (484 KB)

    A possibly-censored sequential procedure, based on the 1-sample 2-sided Kolmogorov-Smirnov statistic, for estimating-with a prespecified probability of error-the unknown (vector) parameter of any continuous distribution, is presented. One of the main features of this procedure is the capability of determining, during a life-test, the time when the observed data are sufficient to stop the experimen... View full abstract»

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  • FAMOCUTN and CUTQN: programs for fast analysis of large fault trees with replicated and negated gates

    Publication Year: 1995, Page(s):368 - 376
    Cited by:  Papers (5)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (632 KB)

    The paper describes the principal difficulties arising with cutset evaluation for large fault trees containing many replicated gates and events. The usual bottom-up algorithms based on the usual modularization technique with truncation of low-probability cutsets can lead to great computer-tine expenditures with a large upper bound for the probability of the system failure due to the truncated cuts... View full abstract»

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  • Reliability modeling of hardware/software systems

    Publication Year: 1995, Page(s):413 - 418
    Cited by:  Papers (12)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (452 KB)

    This paper uses a single model to analyze the effects of both hardware and software on system reliability. A unified model of hardware and software reliability is developed using Markov modeling. Then the effect of hardware and software failures is studied using the model. The model incorporates concepts from both hardware and software reliability modeling. Examples of both simplex (nonredundant) ... View full abstract»

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  • Estimation subject to block censoring

    Publication Year: 1995, Page(s):489 - 495
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (408 KB)

    A series system comprises n components arranged in decreasing order of likelihood of failure. The components are grouped into modules and, on system failure, the modules are replaced in sequence until the system is repaired. Thus, it is not known which component has failed, only which module contains the failed component. It is shown how, for a certain class of life-length distributions, prior inf... View full abstract»

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  • Optimal replacement of improving and deteriorating repairable systems

    Publication Year: 1995, Page(s):500 - 504
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (296 KB)

    System improvement and deterioration are defined in terms of partial orderings between life distributions. The effects of ageing of `the distribution of time to first failure' on improvement and deterioration of a repairable system subject to minimal repairs, are investigated. Under various types of life distributions we derive explicitly the times at which the system should be condemned (replaced... View full abstract»

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  • Reliability of linear consecutively-connected systems with multistate components

    Publication Year: 1995, Page(s):518 - 522
    Cited by:  Papers (10)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (220 KB)

    A linear consecutively-connected system with multistate components (LCCSMC) consists of n+2 linear ordered statistically independent multistate components Ci, i∈[0,n], and the sink Cn+1 (which is absolutely reliable in a certain sense). System failure is caused by the Ci. If Ci is in state 0 then it is failed, if it is in the state j (1⩽j⩽k... View full abstract»

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  • Popcorning: a failure mechanism in plastic-encapsulated microcircuits

    Publication Year: 1995, Page(s):362 - 367
    Cited by:  Papers (22)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (500 KB)

    Popcorning is a failure mechanism in plastic-encapsulated microcircuits. It occurs when the inherently hygroscopic encapsulant is rapidly exposed to high temperatures during reflow solder assembly of the component to a printed circuit card. At these temperatures the moisture absorbed by the molding compound vaporizes and rapidly expands leading to the development of high stresses. When these stres... View full abstract»

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  • Joint reliability-importance of components

    Publication Year: 1995, Page(s):408 - 412
    Cited by:  Papers (24)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (352 KB)

    Hong & Lie (1993) defined joint reliability importance (JRI) as a measure of how two components in a system interact in contributing to system reliability. Their definition and theorems regarding JRI were limited to statistically independent component states. This paper removes the statistical independence restriction by showing that similar results hold in the more general case where componen... View full abstract»

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  • Amdahl's law: a generalization under processor failures

    Publication Year: 1995, Page(s):455 - 462
    Cited by:  Papers (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (436 KB)

    Recent advances in VLSI technology make it possible to manufacture computer systems with thousands of processors that can work concurrently on the same problem and improve the running time of programs. Amdahl's law measures the speedup (the ratio of the running time of a program on a 1-processor system to the running time of the same program on a multi-processor system) under the assumptions that ... View full abstract»

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  • The generalized Gamma distribution: its hazard rate and stress-strength model

    Publication Year: 1995, Page(s):392 - 397
    Cited by:  Papers (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (356 KB)

    The 3-parameter generalized Gamma distribution (GG3) is very versatile for life distributions. Basic properties of GG3 are reviewed here, together with the major available inferential work on its parameters. Original results are presented on the hazard rate of GG3 and on its stress-strength model View full abstract»

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  • Modeling failure-data by mixture of 2 Weibull distributions: a graphical approach

    Publication Year: 1995, Page(s):477 - 488
    Cited by:  Papers (16)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (648 KB)

    The paper presents a graphical approach to decide on the appropriateness of a mixture of 2 Weibull distributions to model a given failure data set. It involves plotting the data on Weibull paper. The plots are completely characterized and the parameters estimated for various cases. Two examples involving real data illustrate the usefulness of the approach. The results are compared with those of Ji... View full abstract»

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  • Exchange of censorship types and its impact on the estimation of parameters of a Weibull Regression model

    Publication Year: 1995, Page(s):496 - 499
    Cited by:  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (272 KB)

    The objective of this paper is to examine whether treating failure times, actually derived under type-I censorship, but treated as though type-II censorship were used, leads to important reduction in efficiency of the maximum likelihood (ML) estimators of the parameters of a Weibull Regression model, frequently used in accelerated life testing studies. This paper shows that exchange of censorship ... View full abstract»

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  • Analysis of a 2-phase model for optimization of condition-monitoring intervals

    Publication Year: 1995, Page(s):505 - 511
    Cited by:  Papers (4)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (512 KB)

    Condition monitoring is a maintenance strategy where decisions are made depending on either continuously or regularly measured equipment states. It reduces uncertainty with respect to actual states of equipment, and can thus avoid unnecessary repair or replacement. However, it involves capital expenditure and/or operational costs to perform measurements. This paper presents a basic model for the e... View full abstract»

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  • A simulation algorithm for computing failure probability of a consecutive-k-out-of-r-from-n:F system

    Publication Year: 1995, Page(s):523 - 531
    Cited by:  Papers (6)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (580 KB)

    An efficient simulation algorithm for computing failure probability of a consecutive-k-out-of-r-from-n:F system (linear or circular) with any component reliability, is presented. The algorithm estimates both the failure probability of the system and the associated uncertainty (error). A complete interpretation of the algorithm results is given through a detailed error analysis View full abstract»

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  • Compound Poisson approximation in reliability theory

    Publication Year: 1995, Page(s):398 - 402
    Cited by:  Papers (8)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (328 KB)

    The use of the compound Poisson local formulation of Stein's method to obtain reliability bounds is discussed. In the context of the consecutive-k-out-of-n model, the approximations obtained are comparable with the best known for the system, which rely heavily on its special structure. In contrast, Stein's method for the compound Poisson approach can be applied equally effectively in many more-com... View full abstract»

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  • Unavailability analysis of periodically tested standby components

    Publication Year: 1995, Page(s):512 - 517, 522
    Cited by:  Papers (4)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (412 KB)

    General recursive models are developed for the unavailability and the mission-failure probability of standby equipment subject to periodic testing. The analytic approach allows general distributions for the failure times, test durations, and repair times. It accounts for start-up failures, standby failures, and failures during mission, as well as several categories of human error. Explicit express... View full abstract»

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  • Reliability of circular consecutively-connected systems with multistate components

    Publication Year: 1995, Page(s):532 - 534
    Cited by:  Papers (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (172 KB)

    A circular consecutively-connected system with multistate components (CCCSMC) consists of a set of a components ei, i∈[1,n] arranged in a circle. The ei is followed by e i+1, i∈[1,n-1]; en is followed by e1 . The ei can be in 1 of the states 0,…,ki . If ei is in state k∈[0,ki], ... View full abstract»

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  • Some characterizations for the exponential class of distributions

    Publication Year: 1995, Page(s):403 - 407
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (236 KB)

    A general characterization theorem, based on conditional expectation, is proved for the exponential class of distributions. The theorem is then applied to numerous discrete and continuous probability distributions of the exponential class providing specific characterizations for each one of them 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