[yndoendo]

Would you classify a nurse call system as requiring important data retention and access? Mapping backbone devices with passive and interactive end user devices with means to communicate whom should provide assistance?

Works great there too with μC/OS-II. Competition was using Windows XP and Microsoft Access.

Only time ever using Oracle has been with internal business analytics, not very important.

[TZubiri]

No I would not, the application is important and critical, but the data? What data are you holding? Historical auditable data regarding calls? I have some experience with hospitals, and deep data like this would never be used for diagnostics or even epidemiology tracing.