When did Zetasoftware begin to work with GeneXus?
Right from the beginning.
I discovered GeneXus before starting Zetasoftware, and once you find out about GeneXus and its change of paradigm, there's no turning back.
The most appealing thing for me was GeneXus' promise: "Focus on your business and we will keep you technologically up-to-date." Being free from worrying about frequent changes in technology was a very attractive offering, and it was great to see its potential at that time.
Why did you choose to use GeneXus?
Because it claimed it would focus on the application and on knowledge instead of the technology that it would use. It was also due to the amazing productivity that it provided. At the beginning it was only me at Zetasoftware, but my productivity made it seem like there were 4 programmers.
In sum: technology independence + increase in productivity