Fresh out of college, about 15 years ago, I landed a job at a small software company, mostly a microsoft shop, but their core app was written in something called Centura (made by Gupta I think?). At the time, I was hired as a VB guy, but they also wanted me to learn Centura, and they even sent me over to their New Zealand shop to do so. All I remember about it was it was in the form of an outline, literally.. Bullet points, indentations, it was an outline of objects...really weird :)