The research method of this thesis is Case study and Yulon Motor Co. is an example for this case study. In order to find out the Yulon motor Co.¡¦s organization, constitution of departments and each different situation at that time, I collect the organizational charts which are about fifty years from the beginning of this company until now and the other inside historic data. By analyzing these data, I summarize the process of the organizational growth and change of Yulon motor Co. Therefore; there are some key points as the following: To begin with, the main organizational structure of Yulon motor Co. is by function. It sets up the benchmark of the complete organizational systems for motor industry in Taiwan, including: research & development, manufacturing and marketing system. Second, organizational tasks at each period would affect the adjustment of organizational structure. There are some main periods as the following: 1.The period was from 1951 to 1971-----Making the Wheel for Taiwan According to this task, the organizational structure was established at manufacturing and increased a few departments and responsibilities based on the needs of production. 2.The period was from 1981---Designing the automobile for Chinese and regain the rights of dealer business When the manufacturing technology was achieved to some level, the designing capability of motor outline was the main competition with the other motor companies. Immediately, Yulon Motor Co. set up the first design center compared with the other motor companies. In the meanwhile, it closed the relationship of dealer business with China Auto Co. Therefore, Yulon Motor Co. rebuilt the network of dealer business all over the Taiwan. It also led the inside of Yulon Motor Co. to reorganize the organizational structure of marketing system. 3.The period was from 1991----relocating the factory and office and reducing the business cost At the end of the 1994, Yulon Motor Co. relocated the other factories, center and office at San-Yi. At the same time, Company combined the same function on the organization and integrated the organizational structure into four systems, including: research & development, manufacturing, marketing and management system to reduce the business cost. This adjustment of the organizational structure made the Yulon Motor Co. abbreviate its original organizational structure and got a positive response from market. 4.The period was from 2001---to be a leader of motor moving value chain at Chinese market Owing to open market in Mainland China, designing the Chinese style on automobile is the main competition in the future. That¡¦s the reason why Yulon Motor Co. focuses on Chinese market as a company¡¦s vision. Third, the history of changing process on the organization of Yulon Motor Co. matches the research of Lawrence & Lorsch. From the history of Yulon Motor Co., it¡¦s easy to find out that the adjustment of organizational structure such as manufacturing, research & development and marketing would be changed by timing, environment and productive technology to achieve the organizational goals or to deal with the competitive outside environment. This kind of adjustment of organizational structure matches the survey¡¦s outcomes of Lawrence & Lorsch. It said that each department on the organization would develop its own function and structure to deal with the variety of outside environment. This survey investigates the ten companies at three different departments, including manufacturing, research & development and marketing department. At last, there are two main strategies for Yulon Motor Co. to overcome the obstacle of communication at different departments: 1.Set up a committee or a meeting of cross function team. 2.Do job rotation.

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