Research On Heterogeneous Data Integration System Of City Municipal Public Facilities

With the improvement of information technology,phenomenon of "information island" is increasingly becoming significant,in order to improve the situation,at the same time between all the "information island",sharing and exchange data to provide enterprise customers an integrated view of enterprise data,thus on the basis of data integration in order to timely adjust business strategy,it is necessary to consider the problem of data integration. However, between the heterogeneous data sources to enable data sharing and have had certain difficulties.To solve this problem the key tool is effective data integration.This article introduces the integration of heterogeneous data and data conversion-related technology research,and then analyses the city's emergency of heterogeneous data field,putting forword then ecessity for management of the city's emergency and intergration of heterogeneous data in emergency field,then research the field of emergency involved,from business analysis to the data obtained,after the meta-analysis based on heterogeneous data,put forward a MergeEAI framework including connection management,data conversion module, communication module and the reverse universal client interface these four-part for heterogeneous data integration methods.The integrated heterogeneous data system under city's emergency response system si designed and realized by J2EE technology,the test result shows that the requirements is content.