CPV code 71243000 designates Draft plans (systems and integration) in the Common Procurement Vocabulary (CPV 2008), the EU classification used to describe the subject of public contracts.
71243000 is a leaf code — the most specific level of its branch — so it can be used directly as the main CPV code of a contract notice. If it does not quite fit, check the neighbouring codes under 71240000 (Architectural, engineering and planning services).