A Review of Enterprise Information Integration from Content Level and System Level Perspectives

To gain insight into increasingly intricate business, and deal with highly complex problem situations, an enterprise needs a more generic, standardized, pervasive and scalable infrastructure to fully leverage the information from different data sources, applications, and environments at both system level and content level. Based on a discussion of basic problem of EII (enterprise information integration), this paper reviews a state of the art of existing enterprise information integration solutions from content level integration and system level integration perspectives. We evaluate existing approaches to content level integration by comparing the method used to describe and explain the data, and the topology structure of the data connected. We evaluate existing approaches to system level integration by in-depth discussion how the systems are coupled. Based on the results of our analysis we summarize the state-of-the-art in enterprise information integration and give the tendencies of further research.