Hello.
Do I really understand that the team has already decided that CUBA will be used as the platform for the workflow system?
Correct. Please read the WP.
http://www.sedocoin.org/download/sedo_wp_en.pdf"9. What the engine of the SEDO EDMS is based on?
The CUBA platform open source engine will be used for the construction of the
SEDO EDMS. This is a time-tested solution that has a high popularity among
developers and customers all over the world. It backed up by a wide community
and excellent customer service and allows you to quickly create the necessary
set of applications from scratch."