HRP is understood as the process of forecasting an organization's future demand for and supply of the right type of people in the right number. There are at least 10 prerequisites for successful HRP including: 1) HRP must be an integral part of corporate planning and aware of corporate objectives, 2) top management backing is essential, 3) plans should be prepared by skill levels rather than aggregates, and 4) personnel records must be complete, up-to-date and readily available. Successful HRP also requires considering external forces, using HRIS as a decision support system, and revising techniques and plans based on experience.