God we used it with the IBM San Francisco framework, which was trying to model every business interaction in the world. Too say it was abstract would be an unde

God we used it with the IBM San Francisco framework, which was trying to model every business interaction in the world. Too say it was abstract would be an understatement. Because it was so generic it didn't just have an amount attached to an transaction, instead it modeled a Money object that had a currency object. I'm sure it was well done to some degree, but loading that framework into Visual Age absolutely killed the poor 2000 era machine.