As tempting and satisfying it is to have an End-to-End view of your solution, it is advised to first decompose it into Flows that would be easier to present to your customer, executives and delivery teams.
A decomposed view is easy to explain to new team members in your project, easy to update, helps the project managers to include only the required reasources in meetings and helps set boundaries to the meetings.
When all your flows are completed you can now regroup them in an End-to-End view that you can present to more experienced team members and executives.
Other advantages of a decomposed view includes the ones mentioned in my previous post regarding the visibility of details included.
