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With the miniaturization and high-capacity of mobile storage devices, and with the development of communication technology such as e-mail, electronic documents of many important organizations, such as government organization, enterprises, army, schools, financial institutions, high-tech Research Institute, can easily spread to the external network. Information can improve productivity immensely, so the loss of an important document electronics unit will cause incalculable damage. The internal leakage has become the biggest threat to information security problems. ZhiSheng system on nonproliferation of documents provides a complete solution to solve the problem of information security.This thesis apply the software engineering theory to the whole development process of ZhiSheng system on nonproliferation of documents. The process includes approving and initiating a project, realization of the product and the release of product. The main content as follows:(1) The background and significance of the project;(2) How to apply the software engineering theory to complete this software project.(3) The important process of project development, including the study of feasibility, analysis of needs, the design of summary, the design of detailed, code, System Test, product release;(4) The key technologies of the projects, including OLE technology and encryption and decryption technology.
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