I'm creating a user journey map for a digital solution that will be used by engineers and their supervisors to complete repair tasks.
In this solution an engineer will submit a request and the supervisor will approve the request from their approval dashboard. Once approved the engineer will get a notification and he can start on the repair task.
My question is how can we show this process on a user journey map. I've seen journey maps for commercial products with the journey of a single user in them. Is it possible to maps out a journey with multiple stakeholders on a user journey map? Would appreciate any examples. Also if this is not the right way to visualize the possess, please do suggest alternative types of maps/charts.