What's the deal with A B testing?

[FAHMI BASSEM]

As a Windows Insider who chose to be part of shaping future Windows 10 features such as SETS, when should I expect to have a tatse of this revolutionary experience?
I don't understand what's the purpose of A B testing here??

 

[pkcable]

A and B testing means that 2differnet things are being tested within the program, and some users get the A version and some get the B version. It’s usually done random.

 

[FAHMI BASSEM]

A Version Having Sets, B Version not having Sets ?????? Can't see why

 

[pkcable]

A Version Having Sets, B Version not having Sets ������ Can't see why

Its done so developers can get reactions for both types of experiences. This will help them to decide if the feature in question is needed, wanted, and if the program works better with and without it. A or B testing is VERY common.