It was DBKit, the precursor to EOF. DBKit started life as a sales demo to show that the NeXT was useful enough to connect to a real corporate database. The dem

It was DBKit, the precursor to EOF. DBKit started life as a sales demo to show that the NeXT was useful enough to connect to a real corporate database. The demo was so popular that the field asked it to be integrated into Application Builder, except that there wasn't an actual framework or design behind it. So we needed to come up with something. DBKit was later rewritten with a real architecture which became Enterprise Objects Framework (EOF).