Rabbit Hole #1
Rabbit hole #2
Back to the “Apdex” part of all this. As I hit the New Relic page, and scrolled, that term jumped out at me. I thought, “huh, ‘Apdex’, I’m not sure I know what that is…”, so, down another rabbit hole, I went. Turns out it is short for Application Performance Index. It’s this sort of beautiful little formula and metric at its core. Frankly, in the first 10 seconds of looking into it, was reflecting just how rare it is to see something this simple.
It is a method of ranking an experience, from 0-1. Or, if you want to think of in percentages, 0-100%. Apdex.org clearly wants this to be more than just for web pages, but for the sake of tying this to my little research journey, think of this metric being used for websites. Specifically, how the user liked the experience using the site. So,
Apdex = ( Fully Happy + Content/2) / Total Visits
Taking a step back
Clearly, this isn’t going to be super illuminating in-depth information with lot s of details all on its own. Consider this though: Survey 100 people and most of them would give you an answer to “how satisfied are you”. Intuitively, I wanted there to be more to this equation when I first saw it, but it grew on me. This detail over 100 visits an hour would be very illuminating. Especially over time or as new changes were made to the site. And perhaps comparing from page to page, you’d find a clear dip on a page or two.
Alright, at this point you probably either agree with me, or you don’t. Or you just don’t really care. Hey! We can take that Apdex!
Let’s say 5 people agree, 3 people don’t, and 8 readers got this far but are kinda bored.
56.25% = ( 5 + 8/2 ) / 16
Hmm, not a great score… I’ll have to add some memes next time.