Reliability (engineering)

Imagine you have a toy car that you love to play with. You want it to work every time you push it, right? That's what we call reliability. It means that something works the way it's supposed to every time you use it.

Now, imagine you have a machine that makes toy cars. You want it to be reliable too, right? That means the machine should make the same quality toy car every time it's used. But sometimes machines can break or not work properly, which means the toy cars won't be reliable.

That's where engineering comes in. Engineers use their smarts and knowledge to make sure machines and things are reliable. They design things to work well and they test them a lot to make sure they'll keep working.

So, if someone says they want to make something more reliable, they mean they want to make sure it works well every time you use it, just like your favorite toy car. And if someone is an engineer who works on reliability, they're working to make things that won't break or stop working so that everyone who uses them can be happy and safe!