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A Simple Method for Analyzing a Data Set with Unknown Suspension Times

Sometimes valuable information is left out of field failure reporting systems, particularly if a system is put in place before it is known how the collected data will be used. Such omissions can lead to a misleading analysis of field failure data. This article considers a case where failure data on a fielded component are collected but operating times of unfailed fielded units are not known. First, the effect of suspension times on predicted reliability is examined, and then a simple method of estimating suspension times for fielded units is discussed.


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2016 ARS Call for Proposals

Take center stage and present at the International Applied Reliability Symposium. By presenting, you could gain insight on solutions for your organization and further your own professional development, plus you will receive complimentary registration. Learn more:


ARS Europe will be held in Munich, Germany on April 4 - 7, 2016. We are adding a third track focused on durability and fatigue alongside two full tracks of reliability and maintainability presentations. All proposals are due by October 30, 2015. For deadlines and forms, visit:


ARS North America will take place from June 21 - 23, 2016 in San Diego, California. Proposals for this exciting summer event will be accepted until December 4, 2015. For deadlines and forms, visit:


Congratulations to the 2015 ARS Asia Pacific Excellent Presentation Award Winners!

ReliaSoft would like to thank all the reliability professionals who presented at this year's ARS Asia Pacific in Singapore. Attendees voted for the top three presenters from the event. Congratulations to this year's Excellent Presentation Award winners:


  • 1st place (Gold) – William Hill from Delta Air Lines with Fleet Performance Monitoring Project
  • 2nd place (Silver) – Krishnan Shrikanth from S CUBE Reliable Solutions Pte Ltd, Singapore with Improving Operational and Maintenance Practices in Process Industry – a Cultural Perspective
  • 3rd place (Bronze) – Arnold Naniong from Analog Devices Inc. with Understanding Copper to Aluminum Intermetallic Compound Growth for Wire Bond Process Monitor


For more details, visit:

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