Is there a solution for cross-company distributed task planning?
For projects with many participants, suppliers and service providers, it is difficult for the project manager to create a reliable project plan. You hold a lot of meetings, send e-mails, make phone calls, obtain further information, etc. And in the end the times are only roughly estimated or only guesses. If the structure becomes more detailed in order to achieve better accuracy, you lose the overview and half of the tasks were still forgotten. Apart from the fact that the plan can no longer be maintained. In particular, QA tasks and approval of deliverables do not make sense to plan as individual tasks, but these tasks in particular then take a long time in the end because the people were involved too late and legitimate questions suddenly come up. Some of you know that - I guess ...
I've searched for a long time and haven't found a solution in which the planning of the tasks can be delegated to the person who will actually carry out the task. In principle, I imagine it to be like this: the project manager, the requester, creates an initial rough plan as usual. He breaks down the task as far as he can do it technically correctly. The requester defines the input and the expected deliverable for each "bar" in its Gantt chart. This request is then sent to a responsible person. The recipient in turn breaks down this task as far as he can and then sends each individual task to the person responsible for further planning and so on. It goes through the whole plan in a cascading hierarchy. Detailed planning is then always made within a task, but only the task responsible sees it. So that the overview is not lost in the details. Everyone only sees what he needs to know.
Isn't it possible to have a system in which those directly involved, those really doing the work, can provide their input to the planning? And in the end, the many small tasks result in a collaboratively created project plan without everyone having to know every little detail.
And before I start building a plugin for e.g. OpenProject to enable task delegation, I wanted to ask whether something like this already exists.