This unit specifies the skills and knowledge required to implement a full cycle of maintenance of spatial data, including updating, backup, recovery and archiving. It includes analysing spatial data systems to determine maintenance requirements and constraints; confirming the reliability of spatial data by editing, updating and integrating existing and new spatial data; and problem-solving to test and validate data currency and retrieval and backup systems. The unit also includes the use of computers and software to manage spatial data, create metadata, and apply spatial data input, output and distribution technologies.This unit is suitable for skilled surveying technicians and skilled spatial information system (SIS) technicians who use a broad range of cognitive, technical and communication skills to select and apply methods and technologies to analyse information and provide solutions to sometimes complex surveying/spatial information problems. Surveying and spatial information skills are applied in a range of industry contexts, including town planning, civil construction, mining, engineering, health, agriculture and defence.All work must be carried out to comply with workplace procedures, in accordance with relevant state/territory regulations that govern surveying work, as well as work health and safety (WHS) legislation and regulations that apply to the workplace.Cadastral surveying must be undertaken under the supervision of a registered surveyor. Users must check with the relevant regulatory state/territory authority before delivery. No licensing, legislative or certification requirements apply to this unit at the time of publication.