Design And Implementation Of The Police Population Information System

Police sector is one of the most important function departments to safeguard national security, maintain social stability and protect the life and property of the people. The plan and construction of the police information system and the improvement and extend of the information application level are beneficial to safeguard social stability and improve the law and order."Golden Shield Project"construction is the nationwide police information project which the Ministry of Public Security develops to fit the need of the new situation change and police development. It strengthens the battle effectiveness of the police and increases the efficiency of law enforcement. It bases on the police information private network whose major contents are police information under the approval of the Central Government.The paper describes the entire process including user requirement, system structure design and implementation of the police information system from the view of the software engineering. Firstly the paper analyses the business complexity of the police project and special requirement of the system. Then it describes the coexist situation of the C/S and B/S in the construction of the police system, and make a detail description on the security control method of the system which the system emphasizes. Police system need to cover several areas of public security, traffic and law case. The goal of the police information system is to manage the public security, law case, traffic and population centrally, it can manage the information and data centrally and every sub-system can use data structure to establish relation and share each other. It is a huge information system. The paper focuses on population management sub-system to describe the analyses method and design thinking of the information system. Population management is the basic work of the police department. The population management model has a large change along with the rapid development of the economy and society. Develop a more efficient population management information system has a important significance to improve the service efficiency of the government and implement the fusion with the other police business systems to implement the consolidation of the police business factor and business process.Using the detail function requirement as a start point, the paper analyses several aspects including the application requirement and security requirement of the population management system, it makes a detail analysis to every business process in the current population management and forms all kinds of system cases. On the other hand, the paper gives the solution, design and detail implementation to the technical structure the system uses, the deployed network structure and security structure. And it submits the development structure and database design scenario of the Spring+Hiberflate+Struts based on current mainstream J2EE platform. It makes a modular division to the system function. In allusion to the client upgrade problem of the C/S model, the system uses the mature Web Start technology to implement the auto-upgrade of the client. It makes a detail and in-depth study and description to the system security control system which covers the resource, role, class and method in the EJB technology. To ensure the stability and availability of the system, the detail deploy scenario and implementation are described for the HA and performance of the system. The HA configuration and hardware device deployment ensure the system performance and HA effectively. The load-sharing technical scenario is also detailed described to fulfill the performance requirement. The usage effects of the system are good and improve the resource share and management efficiency of the police information resource.