The history of Activiti Modeler
Activiti Modeler component is as part of the Activiti projectfrom the start. This Modeler was donated by Signavio as part of the Signavio Core Components project. This project was not maintained anymoresince 2011 (Activiti 5.7) and Activiti team no longer considered it‘core’ to Activiti. Tijs Rademakers (the author of Activiti in Action) has spentquite some in his spare time to master, enhance and tweak the ‘oldcode base’, fork the Signavio Core Components project and create acompletely new, maintainable codebase. The Modeler is now perfectly integrated with Activiti Explorer and has all the specific coveragefor Activiti (Activiti 5.11)!
The commercial version of Activiti Modeler
Activiti Modeler is KIS BPM process solution’s open sourceversion. KIS means keep it simple. Below a feature comparisonbetween the KISBPM product and the Activiti Modeler.
Reference
Activiti Modeler: Resurrected and Revamped
BPMN 2.0 / Activiti in Action
What should you know about Activiti BPM?
KIS BPM
KIS BPM feature