Enterprise nowadays strivestrives to keep transforming their business processes in accordance with the fast changing customer demands so as to survive the intense global competition. In an attempt to provide practitioners with an insight into ERP implementation and the resulting business performances, this paper investigateinvestigates how a successful ERP implementation can help transform enterprisesenterprise processes. Case basedCase-based research, which is based on an in-depth observation under managerial and practitioner situation, is used. A case study at a precessionprocession engineering company is conducted to evaluate the feasibility of the proposed strategic enterprise information model. This paper focuses on the implementation of Sales & Marketing and Warehouse modules of an ERP system. The key performance indicators are used to evaluate how the ERP implementation can improve the business processes. It is found that ERP helps to improve data visibility and improve on-time delivery, but is less effective on improving employee productivity. This research proposes an enterprise information model to exploit what strategy should be formulateformulated and how ERP tactictactics can be implemented in company to enhance enterprise competitive advantages. The strategic enterprise information management model is formulated based on our in-depth case study and ERP consultant's experience.