Terms of Reference (TOR) is a strategy-level document that defines the tasks, duties, background, objectives, planned activities, expected inputs and outputs, budget, schedules, and job descriptions required of a project contractor. The purpose of a TOR is to specify the amount and type of work to be accomplished by the project and establish the relationships between stakeholders. TORs are developed once a project has been identified, defined and planned to judge the performance of contractors and consultants.