Apply The COM Technology Develop The Fee System Of Mobile

In recent years, due to the rapid development of the mobile communication profession in our country, the fee system which is closely related to the mobile communication network, has been given more and more attention by the mobile communication corporation in China. In previous systems, the usual practice is to develop different operation interfaces according to different business needs, and each interface is independently connected to related business operations. The development of such separate modules cannot meet the needs of the fast development of the mobile communication market and is difficult to update and maintain. In order to solve these problems in the fee system, a new type of development model is needed to integrate the modules that perform different functions to realize unified maintenance and automatic updating. The COM technology is technology which can be used to develop component modules binary system compatible to realize unified maintenance and automatic updating.This thesis first gives a detailed account of the standards, principles and development of COM module in the Windows operating system. And then, based of COM module's cross platform and binary system compatibility features it then introduces how to use VC++ and VB languages to develop and to integrate the nodules, and to analyze and study the AcitveX technology developed on the basis of COM technology. In conformity to the feature of being able to be updated after systematic registration, the COM technology improves the registration methods and to perform self-registration and automatic updating to meet the needs of fee system.Although this design is developed to adapt to the characteristic of multiple needs and enormous changes of the fee system, it can be used of all kinds of application systems based on the Internet database.