Survey on enterprise application integration technology

This paper first overviewed the concepts and architectures of the enterprise application integration,and then ad- dressed the key technologies,the state of the art,and open problems in the perspectives of application integration,information integration,and business process management.Finally,pointed out that the architecture of EAI would be standardized based on the technologies of Web services etc,and integrating legacy systems,building global information schema,modeling de- scribing business processes and business activity monitoring were main research directions presently.