Overview: EXECUTIVE SUMMARY: Companies optimizing ERP investments are looking for deeper industry expertise, larger returns on investment (ROI), and financial viability from their vendors. Technical architecture renewal is gaining increased momentum through aggressive development efforts of several vendors — including Lawson, Microsoft Business Solutions, Oracle, and SAP — but customers remain cautious. Conclusive proof points of adaptable and open ERP systems, however, will not be demonstrated until 2007 or later. After three years of declines, the market regained momentum in 2004, largely due to SAP's strong performance in the wake of Oracle's acquisition of PeopleSoft. Going forward, the market will grow 4% through 2008, as ERP vendors continue to consolidate for stability and deepen industry specialization to compete against larger rivals.