Today’s enterprises have been facing much more pressure than ever before not only because of the rapid change of market demand but the shorter product life cycle so as to survive among the competitors all over the world.
ERP system can serve to smooth business processes, to integrate each department's workflow to unify procedure of data processing and to combine all relevant data from various departments, and to enhance managers make a correct and precise decisions with real-time information. Therefore, if a company can successfully implement an ERP system and know how to use the ERP system efficiently, it can significantly sharpen the enterprise's competitive edge.
This study aims to observe how the T Company successfully implements and applies the Enterprise Resource Planning (ERP) system. The purpose of this study is to explore the impact of the ERP implementation degree of readiness, the ERP integration ability and ERP vendors supporting ability can provide on the performance of a firm.
The research methods include Descriptive Statistical Analysis, Exploratory Factor Analysis, Reliability Analysis and Multiple Regression Analysis, based Chinese version of SPSS Windows 12.0.

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