Talk:Failure rate

message: We should make Failure rate a disambiguation page and move this page to hazard rate. Failure rate is often used confusingly (but not strictly speaking incorrectly!) to refer to either (a) hazard rate or (b) rate of occurrence of failures (ROCoF). The former belongs to parts reliability, the latter to repairable systems reliability. This article is about (a) but might propagate the confusion. Repairable Systems Reliability by Ascher & Feingold puts the matter clearly.
The article also duplicates a lot of stuff that is in survival analysis. I suggest taking the detailed stuff out of survival analysis and putting it into the hazard rate article.Cutler 15:37, Mar 26, 2005 (UTC)
There are several related pages that need to be better organized and cross-referenced: Failure rate, MTBF, Survival analysis, Bathtub curve, Infant mortality and probably some others. I plan to work on this in the near future, starting with merging MTBF with this article. Any comments on the best way to reorganize these pages would be appreciated.
Also - nice to see that this page was referenced by the media!
Hazard rate already redirects to this article. DFH 19:02:27, 2005-09-01 (UTC)
As someone who was looking for a widely applicable definition of something called "Failure rate" I found this appropriate to my needs. So, although I took the opportunity to make a few changes for readability/clarity, I would make a strong please for it to stay where it is. (It still needs work done on the references. I don't have time to fix them today.) PeterDz (talk) 16:53, 24 September 2010 (UTC)
thread_title:  Hazard rate 

message: what does "projective manifestations" mean?
Delete this remark when the sentence is fixed.
Matt Whyndham 15:33, 31 May 2007 (UTC)
thread_title:  Jargon? 

message: In section "Failure rate in the discrete sense" you say that) R(t) = 1 - F(t), but what is F(t)? It has not been mentioned before that point  — Preceding unsigned comment added by Yannis1962 (talk • contribs) 11:49, 25 December 2013 (UTC)
thread_title:  What is F(t)? 

message: In discrete time, the variable i should be used and lambda(i)=f(i)/R(i-1).Per W (talk) 17:36, 25 March 2015 (UTC)
thread_title:  The section Discrete time is actually continuous time 

message: Why are they not the same as the failure rate? Per W (talk) 23:11, 26 April 2015 (UTC)
thread_title:  Hazard rate and ROCOF  

message: Computers have become pervasive, microprocessors ubitiquous.
As student I worked on a Zuse 23 computer, based on tubes and mechanical devices. Quizz: The world's 1st binary computer?
Later I visited the computing center of a university. It sported the worlds 1st fully transistorized large scale compter. aThey said it was the most performant, being statistically non-working 29 days per month, they said, but faster than ...
The common concern was MTBF.
Today, 60 yrs later: I have a 10 yr old laptop: 8 GB Mem, 200 GB HD: 1st pb: the CD drive quit, but no need any more: now we download apps, have 1TB mSD, etc.
I'll toss my PC and have already bought a new one without HD - simply plenty of SSD ... 
How about my faithful companion MTBF? When did it become irrelevant?
MTBF is like en ex, it left me, don't miss it. Just wondering where it's gone...
Any graphs available? 2001:9E8:8ACF:AE00:74F0:6592:1246:600D (talk) 00:01, 7 January 2024 (UTC)
thread_title:  Personal Computing: Where's MTBF gone? -> Evolution of MTBF in computing over time. 

message: It's stated under "Failure rate in the discrete sense" that:
"Although the failure rate, , is often thought of as the probability that a failure occurs in a specified interval given no failure before time , it is not actually a probability because it can exceed 1."
but later it states:
"...Note that this is a conditional probability, where the condition is that no failure has occurred before time t." Kai (talk) 00:56, 31 March 2024 (UTC)
thread_title:  Conflicting statements about discrete hazard function