Research On The Key Technologies And Methods Of Shared Data Exchange

Information System has played an important role in every walk of life. With thedevelopment of computer and network technology, the emergence of advanced mannerof working was driven by network-based resources sharing. Some large-scale businesssystems often require the exchange of business data among several independentdatabases. However, the differences of the business processes initiate the variety ofrequirements. And consequently, how to accomplish the data exchange becomes suchan important issue when building a large-scale business system.In this paper a solution is proposed to establish a universal shared data exchangeplatform, which is based on the research of data exchange projects at home and abroad.The description of the requirements on data exchange is “Exchange Rule”, which isdefined in the meantime it is employed. The “Exchange Rule” is independent from thebusiness of the system and is able to reflect the operation on data exchange amongmulti-source heterogeneous RDBMS. The structure and mechanism of the rule isspecified in the paper with a Petri Nets model which is to present a mathematicalanalysis for it. Meanwhile, other essential conceptions and crucial elements in thesolution are described in detail. Finally, the solution is implemented by J2EE softwarearchitecture, and is applied to Xi’an Enterprise Credit Information System for testanalysis and verification over the validity.