Bank Payment System Data Consistency And Integrity

The thesis mainly analyses and researches the key technologies adopted and implement of the data consistency and integrality in the bank payment system, combining the technology in the network application development at present. The network applications accomplish the access and process to the isomerous information transparently, and make them work cooperatively to finish the complicated applications. Its characteristic is that the whole application is distributed at different nodes with different environment configurations, including the hardware, the operating system, the database and other system software etc. The application distribution determines the data distribution in the network system. It has become a problem that can not be neglected how to ensure the consistency and integrality of these distributed data. If it doesn' t work, the data will lose their practical value. Therefore, the research about the technologies for the data consistency and integrality is very worthful.As a financial network application, the bank payment system is based on the CNAPS.It mainly deals with the payment and balance among the different financial institutions in our country, such as the exchange,trust making collections and so on. The bank payment system has three parts such as the bank inner client, the bank inner server and the prepositive system. When a payment business is dealed with, the data will have to go from the bank inner client to the bank inner server, and then to the prepositive machine, and finally to the CNAPS or the contrary process. The data is transferred among these parts of the system, and is stored and processed differently. If the data is modified purposely or damaged, they will not be integrated. The result from the data is obvious. Similarly, if the data storage and process become abnormal, the same data will not be consistent physically and the different data will not be consistent logically. The non-consistency will bring the unexpected disaster. Once the data lose the consistency and integrality.it means the data has been not valid. These will influence the normal process of payment business. Thus keeping the data consistency and integrality has become an important condition concerned with the running correctly for the whole system.The focal points of the thesis: firstly, analyse and research the technology used to ensure the data consistency and integrality in the network application development, including the subsequence control of the application processes, the transaction management of the database, the access control for the data, the complete and reliable data transmission, the data storage and some other encrypt technology with hardware and so on. Then, combining the business flows and functions of the bank payment system, analyse the problems about the data consistency and integrality in the system, incuding the payment going account, the payment going information, the payment coming account, the payment coming information and so forth. Lastly for these parts of the bank payment system, from many control aspects, describe the key technologies used for the data consistency and integrality. The analysis and research in the thesis afford pressing and feasible technologies for the bank payment system, and also put forward practical and referential scheme for the assurance of the data consistency and integrality for other network application development.