Research On Remote Data Transmission And Storage Based Upon COM Technologies

Nowadays IT industry is boosting web waves to a higher level, more and more bureaus or companies are fostering better management systems with web built in. In the coming days they are poised to Internet with other entities to share all breeds of information with the latter,such as customs, banks,industrial and commercial permit-licenced authorities,and governments at all levels.It is useful and complementary to develop the remote data transmitted system. This thesis puts forward the solution based on 3-tier C/S architecture aiming at the shortcomings on its Productivity,safety,and stability of the stereotypical 2-tired C/S architecture and carries out the framework of the system,including the general design and module design. At the same time it also puts forward the difficulties of technology and the solutions for system modularization. comprehensive analysis of the component technique COM of microsoft,the detailed introduction of the three-tier structure based on Windows DNA is made deeply researching into the technology of database access.Finally developed this system to realilze the function that many remote clients send datas to the central server to save uniformly,solving the question of remote data transmission and storage.