<CLIK! on the other hand quotes an MTBF of 100,000 hours. This actually is really bad. This equates to an annual failure rate (AFR) of about 10% per year. Yes, 10% of all CLIK! devices will fail per year.>
The way I've heard MTBF explained is this (I'll use 100,000 hours.) If you had 100,000 of something all running at the same time, a failure will occur after a certain amount of time T1. Then you replace the failed unit, and keep going. You repeat this n times. Then when you average the values T1-Tn (where n is sufficiently large to make the test meaningful) it comes to 1 hour. That is, it takes 100,000 continuously running devices to average one failure per hour. Thus, to lose 10% of the 100,000, you will need to run them for about 10,000 hours. I seriously doubt that anyone will use their digital camera for 10,000 hours in a year since there are only 8760 hours in a non-leap-year.
So where do you get your numbers from? |
