| Summary: | 碩士 === 國立臺北科技大學 === 管理學院工業工程與管理EMBA專班 === 102 === Due to the present market lies in a competitive global environment, facing the rapid change of demands and the era of customer orientation at the same time, the importance of the quality has gradually been valued. However, under the system of free market and the influence of the competitors lowering the margin, the companies that are in charge of the construction are in the status of high costs and low profits. Still, the contractors are using the same old traditional pattern to the upstream’s material purchasing toward the downtream’s construction quality, and since the contractors or the construction companies often take emphasis on the construction works, they often neglect the related problems of document inspection flow from the upstream material companies toward the downstream construction units which will easily leads to the construction’s low quality and the time delay in completing the construction works.
Along with the phenomenon of Taiwanese industries’ offshore migration, the refrigeration and air conditioning engineering has been decreased year by year. Plus, the domestic industry of the refrigeration and air conditioning engineering has already been very competitive, under this highly competitive industrial environment, only by upgrading the quality of construction is able to increase of the construction’s efficiency then create more profits. Therefore, our research will apply a improving ways Six Sigma on discussing and analyzing in each company, and take the case that one of our domestic refrigeration and air conditioning engineering companies is in the charge as an example, through the ways of Six Sigma DMAIC to find out the reasons of the construction’s low quality and the delaying of completing the work as well as improve the air conditioning engineering’s quality and efficiency to lower the costs and the condition of work delay.
Our research results show that through the way and the viewpoint of Six Sigma DMAIC, we can efficiently find out the main problems of construction’s work delay then get better the problems, also by using this way to formulate the standard of examination to provide each construction unit to follow. In the future, the concrete results of the air conditioning engineering’s quality and the improving ways from our research can also be as a reference for the related professional brothers and the proprietor.
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