For any processes which have a human component the industry standard BPMN tools provide a great deal of out of the box functionality. In this case the runtime engine also supports the standards for business rules (DMN) and Case management (CMMN).
The PoC platform is running the open source Camunda BPM suite, deployed in docker containers.
The Camunda open source BPM tools have been deployed in demonstration mode and can be viewed using the link below.