Paying attention to data integrity has paid off for Fluor, one of the world's largest engineering and construction companies. Fluor uses Microsoft and AspenTech technologies to help ensure the integrity of the physical properties data that are essential for reliable process simulation, conceptual design, and front-end engineering. Fluor recently upgraded its AspenTech aspenONE Engineering software, which now includes the Aspen properties enterprise database. Supported exclusively by Microsoft SQL server data management software, the new enterprise database replaces thousands of flat-file databases at Fluor. It further mitigates the already low risk of data error - which could cost Fluor millions of dollars per project - while also reducing the time and cost to mitigate that risk.