ERP系統整合與企業流程研究─威世通用半導體個案分析 / In a highly competitive industry such as semiconductor, enterprises are often faced with the constant challenge in change management that includes product technology, organization re-engineering, system migration or enhancement. How can the organizations quickly adapt to the path of the evolvement in its environment and ensure the competitive advantage in the meantime is a critical challenge for enterprises to achieve. In November 2001, Vishay Intertechnologies, one of the world’s largest manufacturers of discrete semiconductors announced the acquisition of General Semiconductor (the largest producer of low-to-medium power rectifiers and Transient Voltage Suppressor diodes) and assigned its core business to a new Power Diodes Division with its business headquarters located in Taipei. Along with the acquisition, the newly formed organization Power Diodes Division is faced with an immediate challenge on resource reallocation and rearrangement as well as product portfolio consolidation. The new organization needs to be re-introduced to its customers and to the market with the same quality and performance guaranteed. This study introduces and reviews one of the major changes Power Diode Division had gone through: ERP system integration. Throughout the project, there are organizational realignment and critical business process that had been reviewed with a strict time-event schedule. The result of this integration project not only represents the capability of this organization response to the changes, but also the key performance measurement to the acquisition implementation. Through in-depth interviews and literature reviews, the thesis will closely examine the process of the ERP integration and the major obstacles encountered during this practice. The entire ERP integration project will be reviewed under the research framework on strategy, technology, organization, people and environment. Also how business process mapping into the system will be recorded and discussed throughout the paper accordingly. Ultimately, this paper will review the lessons learned during the integration process as well as the experiences gained from it. This can be used as a case study for companies going through merger with system consolidation task or a case study on the industrial supply chain environment.