Master Data Management (MDM) and Data Integration or Extract, Transform, Load tools (DI or ETL) are all part of a complete Enterprise Information Management (EIM) architecture. But there鈥檚 some level of confusion or disagreement about how exactly they relate to one another. I have heard the sentiment, 鈥淲e don鈥檛 need an MDM, we can do the matching we need in our ETL jobs.鈥� This claim misses the point in some important respects. Let鈥檚 consider how these different technologies compare with each other and complement each other.