exida Webinars

Random and Systematic failures – Issues and Solutions

29 September 2016

Functional safety standards provide definitions of two different categories of failures: random failures and systematic failures. These were created during the standards committee discussions of failure types to be modeled in the probabilistic failure analysis. The committee thinking was that systematic failures could be permanently “fixed” by a change in a design or a procedure.

Many companies establish programs to record and analyze failures. A failure rate analysis is performed to determine device failure rates. One problem observed while reviewing these studies is that many people have completely different interpretations of the definitions of random versus systematic failures.

At some sites, those performing the analysis have realized that failures classified as systematic do prevent safety devices from performing their safety function and are therefore dangerous.

This webinar will go over a recent survey performed and also discuss different viewpoints on how to classify failures.


Session: 10:00 - 11:00 AM EST (GMT -05:00)

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Session: 4:00 - 5:00 PM EST (GMT -05:00)

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About the Presenter:

Ted Stewart, CFSP

Ted Stewart Ted Stewart graduated from the University of Central Florida. While achieving his Industrial Engineering degree he worked for Lockheed Martin analyzing and enhancing their Earn Value tracking PM tools. He also was assigned to streamline existing processes and saved the company over 300k in annual labor costs. Accomplishing these tasks made him a certified Green Belt in Six Sigma. He then accepted an offer from Harris Corporation in Melbourne, FL. During his 4 ½ year tenure with the company he helped transition and lead the program management efforts successfully for over 20+ classified products which ranged from products in the development phase and onto the production phase. Ted is now a project manager and quality deputy for exida in the Sellersville, PA location. He will be focusing his efforts communicating with key clients who are looking for product certification and managing the personnel certification sectors.