How to integrate camunda process workflow with drools

can you provide a details communication diagram which can explain how workflow is integrated with business rules and how can we achieve version control of workflow and DMN tables (to make Business-IT alignment happens). and want to achieve / see the changes of workflow / DMN table without deploying process definition or DMN ?

This might serve as a good example : https://github.com/camunda/camunda-consulting/tree/master/snippets/dmn-orchestration-example

It shows how a BPMN model can integrate DMN models. Hope that helps.