Specialized experience must demonstrate the following: Overall project planning and development and computer programming to facilitate manipulation of data using software; Verifying and updating GIS and CADD databases; Assisting with the preparation of layouts, designs, instructions, plans and specifications for the maintenance, construction or modernization of facilities. Individual Occupational Requirements (IOR) for series 0802 (for positions at GS-4 or equivalent and above): This series covers technical positions supervising, leading, or performing work involving applying a practical knowledge of the methods and techniques of engineering or architecture; and construction, application, properties, operations, and limitations of engineering systems, processes, structures, machinery, devices, and materials.