Technology industry is experiencing its dramatic changes in the amount of data that requires management and the place that such an asset are stored. Despite the exponential growth of information, business leaders are expecting agility in order to complete a lot of works much faster and less expensively using data. With the generalized spread of smart devices under this rapidly changing digital environment and subsequent spread of wireless Internet users and communication expenditure, the amount of data via wireless Internet worldwide is increasing rapidly at a faster rate every year. However, the communication environment cannot catch up with the demands of consumers for the super high-speed wireless Internet. Accordingly, this paper aims to look at the establishment of the cloud storage-based file system that can provide services to meet the needs of users in the cloud computing environment via wireless Internet and the examples of the establishment of such a system.

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Mobile-Office is the IT office that enables people handle their business anywhere and anytime without going to head office. It has propagated rapidly in domestic and foreign companies as the users who use mobile terminal such as smartphone have increased sharply. Mobile-Office is emerging as a new way of conducting business. It requires business environment to be changed to improve business efficiency, as fast-growing mobile-based economies emerges. Small and medium-sized companies's utilization ability for advanced IT technology is insufficient, and limitations exist on capacity of building and investment. They need different development methodologies and utilization methods. The purpose of this study is not only to consider the previous business environment problem on accessibility, mobility, effectiveness, complexity and consolidation, but to search more efficient methods for introducing applications to utilize various smart devices and websites with minimum investment in R&D.

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