In order to solve the increasing problems of information isolated island and enterprise integration in integrated information service systems of modern enterprise, the authors introduce how to build information service system with Service-Oriented Architecture (SOA) and how to integrate J2EE platform and Domino system with Web service technology.

"The information isolated island" has already become bottleneck in the information construction.

For the lack of the whole plan,the enterprise,for many years,has developed dispersedly and introduced the information systems;it has quite one part of the systems can t share between them,and forms information isolated island.

The phenomenon of hospital information islands and it s control strategies;

Based on studying the information islands in condition of information system construction of utilities,this paper discusses the principle for integrative information construction and strategic point.

Information encoding is the fundament and crucial technology of integration of information islands.

The Analysis of China s E-government "information island" phenomenon;

Eliminate the Information Islands,Achieve the Digital Resources Sharing;

The Analysis of "Information Island" Problem in Way to E-governance in China;

For the isolated information island of the conditions,it provides the solution to “Resources integrating”.

With respect to the information construction of large-scale enterprise and government, their information systems’construction is distributed and staggered, thus result in the phenomenon of“isolated information island”.