Maybe it's because I've been heavy into Dijkstra lately, but "business computing" is fundamentally flawed and fashion-driven and really isn't worth understanding. As Dijkstra said, businesses purposefully try to complicate things and keep their work secret in order to profit.
If you strip away the bullshit, it's easy to understand and useful. However, that would make it *too* easy to understand and accessible and lots of IBM salespeople would be out of jobs! Bullshit keeps the economy afloat I'm afraid :-P
You should grow a beard and turn into Dijkstra or Knuth or Stallman instead :-D -Rudolf