A Business Process Management System (BPMS) based on Subject-oriented Business Process Management (S-BPM)
The S-BPM methodology is explained in the book Subject-Oriented Business Process Management, which is available for free download at http://link.springer.com.
Scientific research is published in the proceedings of the S-BPM ONE conference series
http://www.s-bpm-one.org
The S-BPM community site (you are invited) can be found at
http://www.i2pm.net