Human resource (HR) planning is described as a process and set of activities undertaken to forecast future HR requirements and availabilities, resulting in the identification of likely employment gaps (shortages and surpluses). Action staffing plans are then developed for addressing the gaps in ways that are in alignment with the strategy. A variety of statistical and judgmental techniques may be used in forecasting. Those used in forecasting requirements are typically used in conjunction with business and organization planning. For forecasting availabilities, techniques must be used that take into account the movements of people into, within, and out of the organization, on a job-to-job basis.