Research Of SOA Based Information Integration

Information is the core competitiveness of the 21st century, how to gather, organize and use information more efficiently will be the key that enterprises keeping their competitive edge. Information integration is a technique of representing, organization and management of various heterogeneous information resources, hiding the differences between various heterogeneous resources, to provide users a unified data access interface.Taking the practical application as research background, this paper conducted in-depth studies of Information Integration from two aspects: data integration and business integration, established a cross-platform, inter-network, system-independ and high exntesible Information Integration Platform, introduced concept of full distributed information management system which based on Information Integration, and furthermore gave an analysis to this system combined with actual enterprise application.First, described protocol stack of Web Service, and introduced SOA (Service Oriented Architecture) based Information Integration Framework, pointed out advatanges of SOA by compartion with other techniques. In order to cover more network resources, analysis the principle of SOAP transportation, and extended the protocol. This extension finally enabled SOAP message to be routed among any level of NAT or Firewall networks.Later in Chapter III, we disucessed XML data representing in detail, including XML schema mapping and data invalidation. On this base, find a heterogeneous data integration technique by using XML as middleware. Recall the SOA framework, gave a unified Web Service interface definition for integrating heterogeneous data sources, by implementing this interface...