he project scope define the objective of the project, what activities will be perform and some of the activities not included in the project. The scope document is used to create a master schedule that identify the important dates and activities on how the schedule are developed. Project planing and schedule is both an art and a science. No two project manager or planing a professionals develop identical plan and project schedule . Determine the schedule of activities that comprise the project is a key elements of the project management. After gathering information, the project manager or the planners begin to develop the master schedule while working with project team, the planing continue to provide additional information. The type of schedule called conceptual is when the scope of the project is being determine, a simple schedule that show the major tasks and approximate start dates and end dates is develop to allow senior management to make decision about the scope of project. The detail is not require at this stage in the project scope because the whole process may be drop from the scope. If the project is chosen, a master schedule is created. Master schedule is part of contract. It has major events and dates such as the starting dates and the completion dates. The type of schedule vary in details. Abroad general conceptional schedule is used in the earliest phases of project design. A master schedule start date, milestone and completion date becomes part of the contract and is changed by mutual agreement using formal change process or format. Detail to execute the master schedule, the major activities are broken down into smaller activities and are added to the master schedule as needed to perform the work of the project activities.