It is essential that there be an agreement between the Sponsor and the Project Manager as to what the PM will deliver. The Project Sponsor’s requirements must be set out in a document which forms an agreement between the Project Sponsor and the Project Manager. This agreement, which can be called the “project Charter” will contain sufficient information to ensure that fulfilment by the Project Manager will satisfy the requirements of the investment case. The Project Charter should only be amended by formal agreement between the Project Sponsor and the Project Manager.
The Project Charter will also specify any services to be provided by the Project Sponsor’s organisation. Putting this in writing and signing it off will help ensure nothing is missed.