Benefits of a Project Charter
I always have a Project Charter, the major benefits of a Project Charter are that it:
Impact of Not Having a Project Charter
Lack of a Project Charter or a poorly written Project Charter often leads to an unclear need that is likely to give unstable direction to the project; possible ambiguity about the project objectives and scope; possible ambiguity concerning the solution; and possible lack of identifying an important stakeholder for the project.
These are serious concerns that you as the project manager must ensure are properly addressed by insisting that a sound Project Charter is established at the start of your project.
Benefits of a Project Definition
Using the Project Definition enables the project manager to identify the project requirements from a broader perspective, instead of focusing solely on deliverables. This ensures a clarity of scope before detailed planning begins.