Okay kiddo, so you know when you draw a picture and show it to mom or dad? And they might give you some suggestions on how to make it better, like maybe adding some color or making the lines straighter?
Well, when people design things like buildings or websites or even toys, they also show their work to other people for feedback. These people are called reviewers and they give suggestions on how to improve the design.
Now, sometimes the designers are almost finished with their work but want to make sure everything looks good before they show it to everyone. So they might have something called an intermediate design, which is like their practice drawing before they show the real thing.
Active reviews for intermediate designs mean that the reviewers look at these practice drawings and give feedback while the designer is still working on it. This way, the designer can make changes to their work before it's too late.
It's sort of like how you might practice writing your letters on a piece of paper with dotted lines before you write on a lined notebook. You want to make sure you're doing it right first before you start your final work. That's what active reviews for intermediate designs are all about.