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Annual Reliability and Maintainability. Symposium. 1999 Proceedings (Cat. No.99CH36283)

18-21 Jan. 1999

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  • 1999 Annual Reliability and Maintainbility Symposium [front matter]

    Publication Year: 1999, Page(s):i - x
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  • Annual Reliability and Maintainability. Symposium. 1999 Proceedings (Cat. No.99CH36283)

    Publication Year: 1999
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    Freely Available from IEEE
  • Author index

    Publication Year: 1999, Page(s):xvii - xviii
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  • PANEL: Advisory Board - What Are The Successful Companies Doing?

    Publication Year: 1999, Page(s):219 - 223
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  • Author index

    Publication Year: 1999, Page(s): cx
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  • Step-by-step accelerated testing

    Publication Year: 1999, Page(s):57 - 61
    Cited by:  Papers (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (404 KB)

    One important aspect of accelerated testing (AT) is the step-by-step strategy that can help obtain accurate and rapid initial information as results of product testing for reliability problems solving. The author demonstrates that successful AT uses the simulation of input influences on the product in a simultaneous combination, connection and interaction as experienced in the field. Basic to the ... View full abstract»

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  • A framework of integrated reliability demonstration in system development

    Publication Year: 1999, Page(s):258 - 264
    Cited by:  Papers (4)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (600 KB)

    In a design and development process, a final system reliability demonstration testing is needed before the system is released for production. According to classic reliability theory, a large sample size is required to demonstrate system reliability. The reason is that the reliability demonstration according to classic reliability theory does not make use of all information in the system developmen... View full abstract»

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  • Investigation of reliability of hydraulic-robots for hazardous environments using analytic redundancy

    Publication Year: 1999, Page(s):122 - 128
    Cited by:  Papers (8)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (544 KB)

    The Rosie mobile worksystem is a robot that is on the cutting edge of hazardous environment robotics. It is a heavy-duty hydraulic robot designed for nuclear reactor decontamination and dismantlement. The robot consists of a wheeled platform containing a central hydraulic power supply powered by an electric tether, four independently steerable wheels, and a heavy-duty crane/manipulator. The hydrau... View full abstract»

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  • Electronic-module environmental-stress-screening data-evaluation technique

    Publication Year: 1999, Page(s):50 - 56
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (564 KB)

    This report has provided a reliability engineering analysis technique to support optimization decisions for a production environmental stress screening (ESS) program and demonstrated its use. The important groundrules used in this analysis are: (1) a disciplined approach to the ESS process is required for the results of this analysis to be effective; and (2) the failures per thermal cycle should b... View full abstract»

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  • A new method of hard disk drive MTTF projection using data from an early life test

    Publication Year: 1999, Page(s):252 - 257
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (460 KB)

    Traditionally, the exponential and the Weibull distribution approaches have been mainly used in the hard disk drive (HDD) industry to evaluate mean time to failure (MTTF) from a life test in which only early failures may be observed. This paper proposes an approach for projecting disk drive field MTTF using a two-phase bathtub curve failure rate function. Based on this 2-phase bathtub curve failur... View full abstract»

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  • Effective time on station (ETOS): a new operational mission reliability parameter

    Publication Year: 1999, Page(s):118 - 121
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (276 KB)

    Effective time on station (ETOS) is a new reliability parameter used for systems that are designed to provided coverage (surveillance, defense, etc.) for a specified amount of time. The ETOS parameter can be used on systems that provide some type of coverage versus systems that have events defining their completion of a mission. ETOS measures the ability of a system to remain operational for the s... View full abstract»

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  • Reliability management and engineering in a commercial computer environment

    Publication Year: 1999, Page(s):323 - 329
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (692 KB)

    The TandemTM Division of Compaq Computers has developed a highly effective reliability program for the commercial computer industry. The program diligently applies reliability principles throughout the design, manufacture and field use of our products. Our process establishes reliability goals that, in turn, drive change and improved product reliability. We have enhanced not only the re... View full abstract»

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  • Evaluating the risk of industrial espionage

    Publication Year: 1999, Page(s):230 - 237
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (648 KB)

    A methodology for estimating the relative probabilities of different compromise paths for protected information by insider and visitor intelligence collectors has been developed based on an event-tree analysis of the intelligence collection operation. The analyst identifies target information and ultimate users who might attempt to gain that information. The analyst then uses an event tree to deve... View full abstract»

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  • Accelerated reliability tests: solder defects exposed

    Publication Year: 1999, Page(s):43 - 49
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1596 KB)

    This paper describes methodology to perform risk assessment and establish the quality and reliability of solder joints utilizing accelerated reliability life testing techniques. Temperature cycling tests were performed on equal number of 100-pin quad flat pack package mounted on printed circuit board assemblies from a reworked and nonreworked soldering process. The data showed that the accelerated... View full abstract»

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  • Software reliability cases: the bridge between hardware, software and system safety and reliability

    Publication Year: 1999, Page(s):396 - 402
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (696 KB)

    High integrity/high consequence systems must be safe and reliable; hence it is only logical that both software safety and software reliability cases should be developed. Risk assessments in safety cases evaluate the severity of the consequences of a hazard and the likelihood of it occurring. The likelihood is directly related to system and software reliability predictions. Software reliability cas... View full abstract»

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  • Simulation of computer network reliability with congestion

    Publication Year: 1999, Page(s):208 - 213
    Cited by:  Papers (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (544 KB)

    A computer network is generally modeled by a graph consisting of nodes (computers) and links (communication lines). In practical situations, the links have finite capacity, and excess messages are stored in a finite length queue at the nodes. A link is congested if the number of packets waiting to be transmitted over the link exceeds its maximum queue length. The network can fail due to excessive ... View full abstract»

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  • FMECA modeling-a new approach

    Publication Year: 1999, Page(s):25 - 28
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (732 KB)

    FMECA tools must be included into the designers tools suit in order to support the new vision for concurrent engineering environment. To support this new vision the authors introduce a major enhancement to the failure mode effects and criticality analysis (FMECA) to provide more accurate, simpler, more accessible and frequently used computerized analysis tool. They introduce new terminology to enh... View full abstract»

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  • Failure assessment software for circuit card assemblies

    Publication Year: 1999, Page(s):269 - 276
    Cited by:  Papers (8)  |  Patents (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1232 KB)

    Up-front failure analysis of circuit card assembly designs can dramatically reduce cost of ownership, increase product reliability, and thus reduce risks. In this paper, the design process for electronic products is discussed in terms of failure assessment activity. Information resources necessary to support the failure assessment activity are discussed. Finally, the effectiveness of failure asses... View full abstract»

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  • Fuzzy-operators weight refinements

    Publication Year: 1999, Page(s):245 - 251
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (948 KB)

    The advantages of intelligent technologies, and fuzzy logic as a leading methodology among them, lead to increasing popularity in various systems of control, approximate reasoning, optimization and ranking, managing uncertainty, prediction, etc. All these applications consider combination operations, i.e., fuzzy sets aggregation. Most frequently used Zadeh's operators of intersection and union app... View full abstract»

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  • A new method for obtaining the TTT plot for a censored sample

    Publication Year: 1999, Page(s):112 - 117
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (576 KB)

    For a censored sample where withdrawns or suspensions are present, Kaplan-Meier-estimation (KME) method, also called product-limit-estimation (PLE) method, and piecewise-exponential-estimation (PEXE) method, have been typically used to estimate both the survivor function (or cdf) and the total time on test (TTT) statistic at each observed failure time. This paper presents a new method, called mean... View full abstract»

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  • Assuring COTS products for reliability and safety critical systems

    Publication Year: 1999, Page(s):317 - 322
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (548 KB)

    The increasing use of (commercial off the shelf) COTS components, including both hardware and software, in today's new systems is a reality. Cycle time reductions and development economies make this so. Since COTS products have been matured through field operations, they offer potential reliability advantages. Along with the COTS advantages there are some unknowns about COTS that pose a risk to th... View full abstract»

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  • Experience in using MEADEP

    Publication Year: 1999, Page(s):158 - 164
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (784 KB)

    This paper reports some of the authors' experience in using MEADEP-a newly developed measurement-based dependability evaluation tool that includes both data analysis and modeling functions. Several issues are discussed: identification of time between outages and time to repair distributions; need for more graphical model forms; and consistency between parameter estimation and model evaluation algo... View full abstract»

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  • Practical treatment-methods for adaptive components in the fault-tree analysis

    Publication Year: 1999, Page(s):97 - 104
    Cited by:  Papers (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (628 KB)

    In this paper, the dependability analysis of functionally reconfigurable logic is discussed. Such logic can change its function if a failure has occurred and it has been detected. Based on the fault tree technique, several methods are illustrated and investigated, namely the macro-models, the Markov chains, and the multi-static models, which provide the treatment of the system components with adap... View full abstract»

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  • Availability modeling and validation methodology for RS/6000 systems

    Publication Year: 1999, Page(s):305 - 309
    Cited by:  Papers (2)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (468 KB)

    In this paper we show the availability modeling and validation methodology for RS/6000 systems. The availability modeling methodology is used both for prediction of availability characteristics of systems under development, and for the prediction of availability in the special bids process. The core of our methodology is the availability modeling tool-System Availability Estimator (SAVE)-currently... View full abstract»

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  • Assessment of a safety-critical system including software: a Bayesian belief network for evidence sources

    Publication Year: 1999, Page(s):142 - 150
    Cited by:  Papers (15)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (824 KB)

    Assessment of safety critical systems including software cannot rely only on conventional techniques, based on statistics and dependability models. In such systems, the predominant faults usually are design faults, which are very hard to predict. Therefore, the assessment can only be qualitative, and is performed by experts, who take into account various evidence sources. The aim of the SERENE Eur... View full abstract»

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