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Assessment of Reliability Allocation Methods for Electronic Systems: A Systematic and Bibliometric Analysis

Author

Listed:
  • Rajkumar B. Patil

    (Department of Mechanical Engineering, Dwarkadas J. Sanghvi College of Engineering, Vile Parle (West), Mumbai 400056, India
    Center for Advanced Life Cycle Engineering (CALCE), University of Maryland, College Park, MD 20742, USA)

  • San Kyeong

    (Center for Advanced Life Cycle Engineering (CALCE), University of Maryland, College Park, MD 20742, USA)

  • Michael Pecht

    (Center for Advanced Life Cycle Engineering (CALCE), University of Maryland, College Park, MD 20742, USA)

  • Rahul A. Gujar

    (Department of Mechanical Engineering, Pimpri Chinchwad College of Engineering, Pune 411044, India)

  • Sandip Mane

    (Department of Mechanical Engineering, Dwarkadas J. Sanghvi College of Engineering, Vile Parle (West), Mumbai 400056, India)

Abstract

Reliability allocation is the process of assigning reliability targets to sub-systems within a system to meet the overall reliability requirements. However, many traditional reliability allocation methods rely on assumptions that are often unrealistic, leading to misleading, unachievable, and costly outcomes. This paper provides a historical review of reliability allocation methods, focusing on the Weighing Factor Method (WFM), with a detailed analysis of its main findings, assumptions, and limitations. Additionally, the review covers methods for reliability optimization, redundancy optimization, and multi-state system optimization, highlighting their strengths and shortcomings. A case study is presented to demonstrate how the assumption of an exponential distribution impacts the reliability allocation process, showing the limitations it imposes on practical implementations. Furthermore, a bibliometric analysis is conducted to assess publication trends in the field of reliability allocation. Through examples, particularly in the context of electronic systems using commercial off-the-shelf (COTS) components, the challenges are discussed, and recommendations for alternative approaches to improve the reliability allocation process are provided.

Suggested Citation

  • Rajkumar B. Patil & San Kyeong & Michael Pecht & Rahul A. Gujar & Sandip Mane, 2025. "Assessment of Reliability Allocation Methods for Electronic Systems: A Systematic and Bibliometric Analysis," Stats, MDPI, vol. 8(1), pages 1-32, January.
    • Handle: RePEc:gam:jstats:v:8:y:2025:i:1:p:11-:d:1576734
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