The Design And Realization Of The Exchanging Middle Ware Of The Second Section Of Credit Card Project Of The Telecom

This thesis presenfithe solution to the problem of the second section of credit card project of the telecom based on the exchanging middle ware technique.With the rapid development of software and hardware technique, the application territory of computer is more and more widely , there are much kinds of hardware and various kinds system and application software. The middle ware , being the new base software , play an important role to integrate the application software of the different period or in the distinct operating system. The exchanging middle ware is adopted to isolate the exchanging gateway from the trade user's server when they are exchanging the data. The exchanging middle ware is the unique information channel between the exchanging gateway and the trade user's server, they cooperate with the exchanging gateway, they supply the service of data handing to the exchanging middle ware and share the work. The programming interface being provided by the middle ware supplies a steady relatively higher application environment. Whether what changes are generated between computer hardware or system software, only the middle ware is updated and the external interface defined by the middle ware is unchangeable, the application software does not nearly require any alteration, thereby the great investment is protected, which being used in the development and maintenance of the application software.Be living in the systematic design and achieving , Software engineering means significance is lifted up unprecedentedly highly. In order to avert the software crisis , the theory of object-oriented and UML are applied to system requirement analysis and design, the inheritance means is utilized agilely , the rightful and creative design scheme is proposed , the systematic complexity is simplified .The problem of the maintainability and expandability of software and development effectiveness has been solved.