Company C has decided to be more rigorous on proposals sent by the sales team. A workflow has to be set up so that each proposal is reviewed by the head of operations, this one being able to decide of an additional juridical control.
The subworkflow functionality is the ability to call a workflow from another workflow (creating inception-like workflows), and to pass it variables along the way. The main workflow is suspended while the subworkflow runs, and resumes when the subworkflow ends.
The company OhMyDoc has decided to set up a validation workflow for its press releases, with due dates and automatic escalation to the next step of the workflow after a defined period.
Course on Nuxeo Workflow Configuration