Flowable is a compact and highly efficient workflow and Business Process Management (BPM) platform for developers, system admins and business users. It is lightning fast, tried and tested BPMN 2 process engine. It can run embedded in a Java application, or as a service on a server, a cluster, and in the cloud. It integrates perfectly with Spring. With a rich Java and REST API, it is the ideal engine for orchestrating human or system activities.