| Summary: | 碩士 === 建國科技大學 === 電機工程系暨研究所 === 103 === 7-11 was originally started from the franchise, and it was founded in the United States. Now it is the largest chain convenience store worldwide. In November, 2005, the Japanese 7&I holding company had purchased the American 7-11. After that, 7-11 was positioned as a Japanese company. Nowadays, modern people are busy working, and they can’t deal with the basic issues, like food, clothing, shelter and transportation. Hence, it enables the growth of 7-11. Currently, 7-11 has about 46,000 stores worldwide, and they distribute in the countries of whole world. 7-11 can not only solve the general problems, like food, clothing, shelter and transportation, it also provides collection business services in Taiwan. From the above explanations, we can understand that 7-11 is the company which makes a lot of profits, has marketing ability and vast network system. Hence, how to develop operating policies has become the first priority. In the past, there were many relevant studies and they provided good results. However, this paper started from the regional 7-11 business concept and proposed soft-calculation math method to analyze the bulk of purchasing items. Therefore, the paper used seven 7-11 convenience stores in a county in southern Taiwan as the research subject. Then the paper used the GM(h,N) method in the grey system theory to analyze the yearly six business items, including beverages, bread, tobacco, alcohol, books and stationery. Also, the total turnover of the year was calculated as the output. The weighting of each impact factor can be reached and the main operation points can be found. Through the practical analysis and step by step math calculation, the relevant weighting of each factor in the turnover can be obtained. The order of the results is stationary, books, bread, beverages, alcohol and tobacco. The results showed that stationary and books were ranked as the first and second place, the results not only provide purchasing and stocking policies to operate chain enterprises, they also enhance operational efficiency and increase high income.
Keywords:7-11, Operating policies, GM(h,N),Relevant weighting, Order
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