| Nowadays, Mobile operators are changing from the mobile communications specialists to mobile information specialists. With the transform of mobile operators in the role of strategy, the entire value-added services market is changing. Mobile operators have already started to integrate market and probe self-supporting service. According to the present trend, an integrated data-service platform will be the direction of the development of mobile data services. Different types of value-added data services can be developed quickly in this platform .There are common data service templates in this platform. The platform is able to provide unified management for all kinds of resources (such as audio, photos, text messages, etc.), with a unified content management functions .And it also has the functions of operational role (as CP (Content Provider)) management. Under the current status of mobile data services, we introduce an integrated data platform (IDP). The IDP focuses on mobile user groups, fully integrates community resources, and provides many kinds of value-added data service to mobile users such as Life-Service, Entertainment-Service and so on.IDP is an open, modular, standards-based platform. Downwards, it provides communications capability with ISMG (Internet Short Message Gateway), MMSC (Multimedia Message Service Center), BOSS (Business & Operation Support System), WAP (Wireless Application Protocol) Gateway and other functional entities. Upwards, it provides user authentication, SMS (Short Message Service) / MMS (Multimedia Message Service) sending and editor, user management and other public functions. The main structure and the capability are on the basis of meeting existing data products. Service developers no longer need to concern about the underneath communication with other network entities, they can pay more attention to the development of service logic. In addition, the IDP will integrate parts of the basis service functions. Then, the booming mobile data services and the open architecture of mobile data networks are present as the background, and the analysis of service type, service trend and service development strategy for the Operator leads to the current market demand for integrated data platform, then the application of IDP as well as the role of the users are analyzed. According to the development trend of data-service and understanding of the data-service products, the functions of the IDP are analyzed. Subsequently, the system design is introduced, including the system structure, typical operating flow and the physical network. Before introducing the various modules of the system, several current popular middleware servers are compared, and the most suitable server for IDP platform is selected. Module design is introduced in accordance with the hiberarchy relations of system. In the end, the interrelationship among the various modules of the system is concluded, and the design of the failure treatment is discussed.Subsequently, the Message Delivery Module is presented in detail as a core-function-module example in the system. Firstly the functions of the module are analyzed, the module is located in the system, and the software structure of the module is preset. Secondly, the service flowchart as well as the class design is described. The third part is the detailed design of the modules, including implementation details of all the internal functions. This part strives to embody the author's design principle. At the same time, it refers to the various reference design patterns and technologies related to the module, such as EJB3.0 (Enterprise Java Bean3.0), AOP (Aspect Oriented Programming), JMS (Java Message Service) and JMX (Java Management Extensions).In the end, the functions which need to be further explored as well as the prospects of the IDP platform in the future are dicussed. |
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