Architectures for Enterprise Information Portals: An Approach to Integrate Data Warehousing and Content Management

Management decision making depends on highly integrated information from different sources and of different granularity: Quantitative information, which is mainly analysed by data warehouse systems and OLAP systems, is needed as well as qualitative information, which can be administered by content management systems. In parallel the source of these information can be provided within or outside of the enterprise. By now, most approaches concentrate on the integration of the user interface. But the diversity of the information type and sources requires integration beyond this level. Therefore new architectures for information systems to support management decision are needed. Starting form the analysis of the state-of-the-art a new metadata based concept for system integration is presented and developed in three steps. A short description of an imaginary EIP shows the intended opportunities the systems will provide. Metadata management is used to integrate operational systems to a single source of information and consolidates metadata of data warehouse systems and content management systems within a new metadata integration model. Using the resulting integrated source of information, new information system architectures are developed to build Enterprise Information Portals for data warehouse systems and content management systems