This document summarizes a presentation given by Jeffrey Karson of Siemens Water Technologies and Arthur Raguette of Verdantis regarding their master data management and ERP harmonization initiative at Siemens Water Technologies. Siemens Water Technologies had legacy data quality issues due to multiple acquisitions. They implemented a master data initiative using Verdantis' Harmonize solution to cleanse and enrich historical data and Verdantis Integrity solution for ongoing data governance. The initiative improved data quality, reduced costs, and enabled greater visibility and efficiency. Key metrics like duplicates avoided and data enrichment rates were used to measure success.