Activiti BPMN 2.0 Platform

Activiti is battle-tested Business Process Management. Organizations across the world depend on the open source platform in a huge range of demanding situations. It supports open standards with BPMN and DMN so you can create processes that suit you.
Developers Standards-based APIs, Integration, and Flexibility
Business Owners Proven History and Business-friendly Apache 2.0 license.
Administrators Run as a Standalone Service, an Embeddable Solution, or Cloud.