You are a Project Manager in your organization who is managing a considerably huge budget project to develop new software. Considering the varied nature of your stakeholder group, you would like to…

You are a Project Manager in your organization who is managing a considerably huge budget project to develop new software. Considering the varied nature of your stakeholder group, you would like to put together a plan as to what information the stakeholders need, and how to provide that information. What is the document that you would need, and as part of which process group would you achieve this?