Design Con 2015
Breaking News
Comments
Newest First | Oldest First | Threaded View
_hm
User Rank
CEO
Quality and Reliability difference
_hm   6/1/2014 11:31:51 AM
NO RATINGS
@Dina: Perhaps, you need to read more of MIL documents to understand difference between quality and reliability. Reliability science is related but different from quality science.

MS243
User Rank
Manager
Re: Consumers don't value reliability completely
MS243   5/30/2014 9:37:44 PM
NO RATINGS
Everything that is sold to the consumer (general public) involves all manor of very ugly compromises.   The whole ROI model for most items, involves some form of planned obsolecence, planned wear out, etc.   Most people grudingly tollerate it, due to income limitations.  

For example which is better, a hybrid with 100Kmile life, or a light truck with 500K mile+ life?   The light truck might cost 40K, the hybrid 25K

To go 600K miles the truck will use 120K worth of fuel the hybrid maybe 60K.

One would have to also buy 5 more 25K hybrids to cover the mileage at 125K

Net savings for the light truck about 65K -- trouble is most people don't have the 40K up front.

 

       

MWagner_MA
User Rank
Manager
Consumers don't value reliability completely
MWagner_MA   5/30/2014 7:13:09 AM
NO RATINGS
you stated: "consumers will readily abandon brands that experience public failures"  really?  Firestone is still selling tires quite well, Ford is still selling the Explorer ( I owned both before the failures - never again).  Dodge has one of the worst reliability records yet they are still popular.  The average public has a short memory, and votes with their dollars.  If its cheap enough - they buy it regardless of reliabliity history.  That is one of the reasons why the Hi-Fi industry died in the US.  There aren't enough of us who value quality in equipment to keep a brick and mortar store afloat.

Sanjib.A
User Rank
CEO
Reliability vs Safety
Sanjib.A   5/29/2014 11:12:30 PM
NO RATINGS
@Dina: "...If you'd like to learn more, we'll be presenting our findings at DAC during the Work-In-Progress session Wednesday evening, June 4..."

Sure, I would like to learn about your findings.

Though I have not gone through the standard ISO 26262, but I am conversant with IEC 61508 and d I believe the basic philosophy is same. Though the word "Reliability" often means "safety", but actually there is a difference. Both of these standards talk more about the "functional safety": if a circuit fails, the failure mode shall not lead to a dangerous failure (hazard or accident causing serious injuries, loss of life). Hence the focus of these standards are main to help reducing the "Probability of Dangerous Failure" and implementing required diagnostics to catch "dangerous failures" in order to "fail safely". Whereas "reliability", in short means "minimize failures";

  



Flash Poll
Top Comments of the Week
Like Us on Facebook
EE Times on Twitter
EE Times Twitter Feed

Datasheets.com Parts Search

185 million searchable parts
(please enter a part number or hit search to begin)
EE Life
Frankenstein's Fix, Teardowns, Sideshows, Design Contests, Reader Content & More
Max Maxfield

Analog Faceplate Design Decisions: Art or Science?
Max Maxfield
19 comments
My degree is in Control Engineering -- a core of math with "surrounding subjects" of electronics, mechanics, and hydraulics and fluidics. The only official programming I did as part of ...

Jolt Judges and Andrew Binstock

Jolt Awards: The Best Books
Jolt Judges and Andrew Binstock
1 Comment
As we do every year, Dr. Dobb's recognizes the best books of the last 12 months via the Jolt Awards -- our cycle of product awards given out every two months in each of six categories. No ...

Engineering Investigations

Air Conditioner Falls From Window, Still Works
Engineering Investigations
3 comments
It's autumn in New England. The leaves are turning to red, orange, and gold, my roses are in their second bloom, and it's time to remove the air conditioner from the window. On September ...

David Blaza

The Other Tesla
David Blaza
5 comments
I find myself going to Kickstarter and Indiegogo on a regular basis these days because they have become real innovation marketplaces. As far as I'm concerned, this is where a lot of cool ...