Look a "simple" transaction. I wonder who came up with thos…

Look a "simple" transaction.
I wonder who came up with those CamelCode abbreviations? It's making things unnecessary complex but assures that you "build yourself in" and someone outside the small "club" has a very steep learning curve.
It's a thing done amongst IT people, protecting "their" thing, not understanding #TeamHuman. I have seen programmers naming variables with single characters (a, b, c, ... ) from the alphabet. I have seen similar practices in database table naming. <criminal>