Contracts are needed when you’re completing projects for other organizations. Contracts, also called agreements for internal projects, should define all of the expectations for all parties involved in the contracted project work. There are five inputs to consider for a project charter: project statement of work, business case, agreements, enterprise environmental factors , and organizational process assets. 1 is incorrect as calendars are not an input to the project charter. 2 is incorrect; constraints are not an input to the project charter. 4 is incorrect as the risk matrix has likely not been created yet.