This unit of competency specifies the outcomes required to perform surveying computations in a plane coordinate system. Computations involve simple and complex figures with regular and irregular sides, and computations for traverses, angles, bearings, coordinates, perimeter and area. Computations include simple horizontal curves and horizontal set-out data for curves. Specialised software applications are routinely used.The unit supports those who work in support positions in a surveying team to conduct surveying and mapping tasks.No licensing, legislative, regulatory, or certification requirements apply to this unit of competency at the time of endorsement.