Working with your team, you will complete and use an FTA to redesign a simple system to meet a customer$$s criteria.

Review the diagram of the simple electrical doorbell. This system is comprised of three basic components: the bell and clapper, the button, and the power supply. Each component has a failure rate of $1$ in $1000$ operations, or

$1$x$10^3.$

Because you only need one of these components $($OR gate$)$ to fail for the system to fail, the probability of this system$$s failure is $3$x$10^3.$

Work with your team to redesign this system so the failure rate is less than $5$x$10^-6,$ or less than $5$ in a million operations.

Review the Example FTA $($PPTX$).($image$)$Answer

Probability of a fire $=(1{10}^{-3})(1{10}^{-1})(1{10}^{-3})$

$0\mathrm{.}00110\mathrm{.}001=1{10}^{-6}$ or $1$ in a million

Create a Fault Tree to demonstrate the new system$$s reliability.

Your submission can be created using Microsoft Word $,$ PowerPoint, Excel, or it can be hand$-$drawn.

You will not need any new parts or components but will likely have some redundancy of the existing parts in your new system.