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# IEEE Transactions on Reliability

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Displaying Results 1 - 21 of 21
• ### 1996 Index IEEE Transactions on Reliability Vol. 45

Publication Year: 1996, Page(s):1 - 12
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• ### A survey of discrete reliability-growth models

Publication Year: 1996, Page(s):582 - 604
Cited by:  Papers (13)
| | PDF (2388 KB)

This paper focuses on discrete reliability-growth models (DRGM), for which the relevant data comprise sequences of dichotomous success-failure outcomes from successive system configurations or stages. It presents a comprehensive compilation of model descriptions and characterizations, as well as discussions of related statistical methodologies for parameter estimation and confidence interval (or B... View full abstract»

• ### Cutting-tool reliability assessment in variable machining conditions

Publication Year: 1996, Page(s):573 - 581
Cited by:  Papers (2)  |  Patents (1)
| | PDF (672 KB)

It is a common industrial practice to use the same cutting tool for different operations and on different part types to minimize cutting-tool change-overs and the number of cutting-tools required, and to increase part-routing flexibility. This paper derives a recursive formula to calculate the cutting-tool reliability in variable conditions if the failure-time distribution of the cutting-tool can ... View full abstract»

• ### Analyze-NOW-an environment for collection and analysis of failures in a network of workstations

Publication Year: 1996, Page(s):561 - 570
Cited by:  Papers (13)  |  Patents (1)
| | PDF (1160 KB)

This paper describes Analyze-NOW, an environment for the collection and analysis of failures/errors in a network of workstations. Descriptions cover the data collection methodology and the tool implemented to facilitate this process. Software tools used for analysis are described, with emphasis on the details of the implementation of the Analyzer, the primary analysis tool. Application of the tool... View full abstract»

• ### In-orbit experiment on the fault-tolerant space computer aboard the satellite Hiten

Publication Year: 1996, Page(s):624 - 631
Cited by:  Papers (3)
| | PDF (716 KB)

This paper presents field data from the Hiten onboard computer (OBC) which was launched on January 24 1990, and completed its mission on April 10 1993. The components in the OBC experienced 655 single-event upsets (SEU) caused by cosmic rays; the bursts of SEU were observed after 9 major solar flares. In spite of these SEU, the OBC worked correctly during the mission time, due to the fault toleran... View full abstract»

• ### A conservative theory for long-term reliability-growth prediction [of software]

Publication Year: 1996, Page(s):550 - 560
Cited by:  Papers (9)
| | PDF (900 KB)

This paper describes a different approach to software reliability growth modeling which enables long-term predictions. Using relatively common assumptions, it is shown that the average value of the failure rate of the program, after a particular use-time, t, is bounded by N/(e·t), where N is the initial number of faults. This is conservative since it places a worst-case bound on the reliabi... View full abstract»

• ### Accelerated life tests analyzed by a piecewise exponential distribution via generalized linear models

Publication Year: 1996, Page(s):619 - 623
Cited by:  Papers (4)
| | PDF (396 KB)

Efficient industrial experiments for the reliability analysis of manufactured products consist of subjecting the units to accelerated life tests where, for each pre-fixed stress level, the experiment ends after the failure of a certain pre-fixed proportion of units or a certain test time is reached. This paper estimates the mean life of the units under usual working conditions, based on censored d... View full abstract»

• ### Optimal release policy for hyper-geometric distribution software-reliability growth model

Publication Year: 1996, Page(s):646 - 651
Cited by:  Papers (6)
| | PDF (424 KB)

The hyper-geometric distribution software-reliability growth model (HGDM) can estimate the number of initial faults in a software program. An important problem in software development is to determine when to stop testing and then release the software. This paper mainly investigates the optimal software release policies which minimize the mean total software cost and satisfy the software-reliabilit... View full abstract»

• ### Needed resources for software module test, using the hyper-geometric software reliability growth model

Publication Year: 1996, Page(s):541 - 549
Cited by:  Papers (14)
| | PDF (572 KB)

Considerable testing resources are required during software module testing. This paper, based on the hyper-geometric distribution software reliability growth model' (HGDM) investigates two optimal resource allocation (OPT/RA) problems in software module testing: (1) minimization of the number of software faults (NSF) still undetected in the system after testing, given a fixed amount of testing re... View full abstract»

• ### A coherent model for reliability of multiprocessor networks

Publication Year: 1996, Page(s):678 - 684
Cited by:  Papers (2)
| | PDF (620 KB)

Graph G has perfectly reliable nodes and edges that are subject to stochastic failure. The network reliability R is the probability that the surviving edges induce a spanning connected subgraph of G. Analysis problems concern determining efficient algorithms to calculate R, which is known to be NP-hard for general graphs. Synthesis problems concern determining graphs that are, according to some de... View full abstract»

• ### Performability of electric-power systems modeled by non-homogeneous Markov chains

Publication Year: 1996, Page(s):605 - 610
Cited by:  Papers (3)
| | PDF (464 KB)

This paper treats a particular type of Markov system: time nonhomogeneous Markov system in discrete time. In order to adapt measures to this kind of system, performability measures are formulated, such as new indicators more dedicated to electrical power systems like instantaneous mean load curtailed' and mean energy not supplied on a time interval'. This method considers hazard-rate time variat... View full abstract»

• ### Assessment of fault-detection processes: an approach based on reliability techniques

Publication Year: 1996, Page(s):632 - 637
Cited by:  Papers (2)
| | PDF (500 KB)

Two major factors influence the number of faults uncovered by a fault-detection process applied to a software artifact (e.g., specification, code): ability of the process to uncover faults, quality of the artifact (number of existing faults). These two factors must be assessed separately, so that one can: switch to a different process if the one being used is not effective enough, or stop the proc... View full abstract»

• ### Automatic test-generation for predicates [software testing]

Publication Year: 1996, Page(s):515 - 530
Cited by:  Papers (5)  |  Patents (1)
| | PDF (1320 KB)

The authors propose a new technique for the automatic generation of test cases for predicates. Earlier, they proposed an efficient effective test generation strategy for Boolean expressions. They now extend this strategy to predicates. Their new strategy addresses several issues, including: analysis of dependencies between relational expressions in a predicate 𝒫; generation of test constraint... View full abstract»

• ### A Bayes nonparametric framework for software-reliability analysis

Publication Year: 1996, Page(s):652 - 660
Cited by:  Papers (6)
| | PDF (672 KB)

This paper presents a Bayes nonparametric approach for tracking and predicting software reliability. We use the common assumptions on the software operational environment to get a stochastic model where the successive times between software failures are exponentially distributed; their failure rates have Markov priors. Under these general assumptions we give Bayes estimates of the parameters that ... View full abstract»

• ### Failure-rate functions for doubly-truncated random variables

Publication Year: 1996, Page(s):685 - 690
Cited by:  Papers (3)
| | PDF (420 KB)

The failure rate function is generalized for doubly-truncated random variables. This generalized function is used to characterize the distribution function and to obtain the properties that any function must have to be a generalized failure rate function, both for continuous and discrete random variables. From the theoretical results are constructed nonparametric estimators of the Kaplan-Meier typ... View full abstract»

• ### Accelerated life tests for products of unequal size

Publication Year: 1996, Page(s):611 - 618
Cited by:  Papers (4)
| | PDF (504 KB)

This paper considers estimation of the lifetime distribution' and optimal design of constant-stress accelerated life test plans' for products of unequal size. The distribution is Weibull with a scale parameter that is a log-linear function of stress' and a `power function of product size with a size-effect parameter'. Maximum likelihood estimators (MLE) of model parameters are obtained, and the... View full abstract»

• ### The presentation of knowledge and state-information for system fault diagnosis

Publication Year: 1996, Page(s):638 - 645
| | PDF (712 KB)

System fault diagnosis is often performed by humans using fault diagnosis knowledge such as fault trees and system state information. An experiment was conducted to investigate how various forms of presenting fault trees and system state information affect human performance and preference during fault diagnosis. Three knowledge presentations (a semantic network, a schema-based semantic network, an... View full abstract»

• ### Sensitivity of reliability-growth models to operational profile errors vs. testing accuracy [software testing]

Publication Year: 1996, Page(s):531 - 540
Cited by:  Papers (33)
| | PDF (864 KB)

This paper investigates: 1) the sensitivity of reliability-growth models to errors in the estimate of the operational profile (OP); and 2) the relation between this sensitivity and the testing accuracy for computer software. The investigation is based on the results of a case study in which several reliability-growth models are applied during the testing phase of a software system. The faults cont... View full abstract»

• ### Bayes and classical estimation of environmental factors for the binomial distribution

Publication Year: 1996, Page(s):661 - 665
Cited by:  Papers (2)
| | PDF (432 KB)

An environmental factor converts reliability test results at one environmental condition into equivalent “failure” information at other environments. This paper studies environmental-factor estimation for the binomial distribution. Under general conditions, Bayes point estimates and credibility limits for environmental factors are derived. Classical point and confidence interval estima... View full abstract»

• ### Prediction intervals for Weibull observations, based on early-failure data

Publication Year: 1996, Page(s):666 - 670
| | PDF (364 KB)

Let n similar components with Weibull lives be put on life-test simultaneously, and let the first r failures be observed. A prediction interval for failure-time Xk, 0<r<k⩽n, is constructed. An explicit formula is obtained for computing quantiles of a relevant pivotal statistic. Prediction intervals based on various estimators of parameters and methods are compared. The results... View full abstract»

• ### Confidence interval for the mean of the exponential distribution, based on grouped data

Publication Year: 1996, Page(s):671 - 677
Cited by:  Papers (2)
| | PDF (440 KB)

When the available data from an exponential distribution are grouped, the maximum likelihood estimator (MLE) for the mean and several modified MLE have been discussed in literature. However, little work has been done on interval estimators based on such grouped data. This paper derives the asymptotic property of a statistic which is used to construct an approximate confidence interval for the mean... View full abstract»

## 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