This unit of competency specifies the outcomes required to design spatial data storage systems to meet client requirements. The unit covers analysing client needs and storage requirements and assessing the feasibility of those requirements against organisational budgets, resources and priorities. It also covers planning the system design; scheduling development; and creating and testing prototypes where standard formats are unsuitable. The unit requires the ability to negotiate storage requirements and design solutions; and to seek agreement on the final design, as well as feedback from end users, as the basis for implementing improvements to the storage system. The unit supports those who work in a lead role in a surveying or spatial information services team in areas such as surveying, town planning, cartography, mapping and geographic information systems (GIS).No licensing, legislative, regulatory, or certification requirements apply to this unit of competency at the time of endorsement.