[SystemSafety] Discovery of exponential distribution of hardware faults

[Derek M Jones]

All,

The exponential distribution is now the default
distribution for hardware failure.  This 1958 paper
looks like it might be at the start of the citation
tree
https://apps.dtic.mil/sti/citations/tr/AD0158605

Although this 1952 paper has lots of data and also
discusses the exponential distribution.
No paper, yet, behind this link
https://apps.dtic.mil/sti/citations/tr/AD0422811

Are there earlier papers than these?

-- 
Derek M. Jones           Evidence-based software engineering
blog:https://shape-of-code.com