Tyco Valves & Controls has developed an integrated database system to support its after-market service. This custom-designed, PhD software (Performance History Database) facilitates the downloading and easy accessing of information about the customer’s installed valve population. The database logs all relevant valve information such as configuration, test history and application, providing historical reference data and enabling valve performance analysis to be undertaken. Implementation of the PhD software package eliminates many of the problems often encountered within user environments, such as multiple data sources, inconsistent data quality, incomplete or inaccurate data, etc.