One, usability over existing systems. It is a difficult one to actually answer but I find people talking about new technologies all the time and when you ask them - Okay, what can we do with it which older technology couldn't? Mostly I hear murmurs or barely justifiable answers. But, if the explanation is sound, I go for number 2.
Does the person talking about it has significant exposure into the problem space? Mostly you will see people talking about how X is great but never having to work with the nuances of an older tech Y.
Now this process has some bias built-in. As a supporter of older tech Y it is entirely possible to never find a reasonable explanation. The only way around it is to talk to as many people as you can.
Comments
Two things really.
One, usability over existing systems. It is a difficult one to actually answer but I find people talking about new technologies all the time and when you ask them - Okay, what can we do with it which older technology couldn't? Mostly I hear murmurs or barely justifiable answers. But, if the explanation is sound, I go for number 2.
Does the person talking about it has significant exposure into the problem space? Mostly you will see people talking about how X is great but never having to work with the nuances of an older tech Y.
Now this process has some bias built-in. As a supporter of older tech Y it is entirely possible to never find a reasonable explanation. The only way around it is to talk to as many people as you can.