Design And Implementation Of Highway Variable Information Release System

With the development of the system, deliver information realized the routing management. The one is deliver information management become delegation issuing and review issuing, reduce the process of deliver information notification link. The second is the equipment of information management that each manufacturer through this system, including report the state of information management, increase and control the equipment of information. The third is the system can statistics the information, make the expressway operation management to provide the basis.Based on the concept of J2EE, the variable information system has the function of guided and diverted in the process of command and dispatched were analysis and design, the main job were completed:1.Firstly, according to the actual demand analysis, the process of variable information system had been researched and detailed, which gives the group of expressway operation management of the organization chart, the deliver information work flow of the system were analyzed and gives the information management every business flow diagram.2.Through the information system function requirement analysis, there are five subsystems in variable information system. After the functions of five subsystems wasanalysis, use case diagram and use case specification were be finished.3. With the analysis of demand in variable informationsystem, according to the architecture of J2EE, system’s overall function andarchitecture and detailed design were be finished. At the same time, according to the use diagram of every subsystem in variable information,he corresponding sequence diagram and collaboration diagram were be finished also.4. Lastly, database design was finished, the variable information system interface was designed, and code was finished.