NUCLEAR MATERIALS MANAGEMENT DATA REPOSITORY: THE PIVOTAL PIECE OF A FLEXIBLE AND HIGHLY INTEGRATED SYSTEM

For the sake of maintenance, evolutions and performance, AREVA has decided a progressive modernization of its Nuclear Materials Management (NMM) information system. The underlying principle is a clear separation of the main functions: Physical Follow-up, performed at the plant-level, Regulatory Accountancy (for IRSN, EURATOM and IAEA safeguards), offering consolidation at the corporate level, and Patrimonial Accountancy (allocation of materials and conditioned wastes to AREVA’s customers). The pivotal piece of this multi-year programme is the implementation of a dedicated data repository. We describe its main building blocks and demonstrate how it helps in managing changes to regulation, products, customers and operating processes. It allows a standardized definition of physical objects (such as containers, boxes, tanks or nuclear materials), a multi-scale representation of inventories and flows (technical view at the installation or equipment level, regulatory view based on Material Balance Areas (MBA), multi-site view at corporate level). Eventually, we give some insight of further steps under consideration by AREVA for the next few years, encompassing technological upgrades and improved integration.