Doesn’t bother me how people word it.
No company follows any hard and fast rules as to what their tests involve.
There is not set standard for whats in a tech or alpha or beta.
I get your true problem though, people using the term “Beta” to refer to all steps of the process.
I bet you have a similar issue with people calling all brands of jello, jello. Or that every brand of lip balm is referred to as Chapstick.
Or my personal favorite, every form of device for ear cleaning is called a Q-tip.


