Database Management System
Firebird® is an open source SQL relational database management system.
 The project link is www.firebirdsql.org VODCA interfaces Firebird® in a client/server relationship for patient and outcome databases. Interesting features of Firebird®:
- Runs on Windows, Mac OSX, Linux, and a variety of Unix platforms;
 - Multi-user, concurrent connectivity;
 - Small memory footprint;
 - Supported by open-source and commercial contributions; and
 - large worldwide user community - used by approximately 1 million software developers.
 
VODCA databases can reside on local computer or remote host.
and
1 VODCA database = 1 Firebird® file Thus, VODCA databases are very easy to backup, copy and share as a template!
What's the limit on the Firebird® database size? You'll probably hit the filesystem limit long before Firebird's.
Firebird® is a registered trademark of Firebird Foundation Inc., Australia