Enterprise Resource Planning (ERP) system is one of the most popular forms of IT for businesses at present. Deriving from efforts to rationalize lead times and possession stock costs, the 80’s manufacturing resource planning (MRP II) is developed into ERP system considered as the standard that integrates business processes throughout the organization, which in turn enhances operational efficiency (Akkermans, Bogerd, Yücesan, & Van Wassenhove, 2003; Davenport, 1998). Callaway (1999) states that the ERP system promises to achieve benefits in both tangible (., reduced personnel, inventory, IT and procurement, transportation, and logistic costs; improved cash flow management, revenue and profits) and intangible (., increased visibility of corporate data, speed of decision making, and control over global business operations; improved customer responsiveness and business processes) manner. | A Doctoral thesis A development of enterprise resource planning success model ing professionals