Product lifecycle management (PLM) heavyweights Dassault Systemes and UGS Corp. closed out 2005 on a high note, both hitting the billion-dollar mark, enjoying double-digit revenue gains that surpassed the industry average as well as benefiting from healthy increases in sales of PDM (product data management) software.“PLM Heavyweights UGS, Dassault Break Billion-Dollar Mark” a Managing Automation� news article