PRISM
G'day. the tech question then, is de9 based on PRISM too ? thank You for Your reply
PRISM was just a "marketing" name were the idea was that it would work like a prism for data where it didn't matter what format it was stored it. PRISM would translate between dataease/oracle/sybase etc.
To be honest it never really worked the same way that SQL never worked. The idea is that everything is compatible and stay the same is just counter competitive as everyone want to be better than everyone else.
PRISM was in principle just DFD with some addition and "headless".
We have taken that idea further but it is now just DataEase data that PRISM read/write. Any connectivity with other database is not done through PRISM as such anymore.
So the short answer is that yes, PRISM is the database engine and there is still bits in there that go back to DFD 1.0 but the majority is new.