It is important to have a charter for your project because this is the document that formally authorizes the project and provides for documenting and tracking information required by decision makers to approve the project for funding.   It should include a preliminary delineation of roles and responsibilities and define the authority of the project manager.  The purpose of the charter is to document the reasons for... 

The project description is simply that – a brief description of the project and what it encompasses.  This section of your project management plant should be clear and concise but provide enough information that anyone reading it can get a high level view and understanding of your project.  It should define the purpose, scope and objectives of the project as well as product deliverables, estimated time frame...