Managed Evolution: A Strategy for Very Large Information Systems
Many organizations critically depend on very large information systems. In the authors' experience these organizations often struggle to find the right strategy to sustainably develop their systems. Based on their own experience at a major bank, over more than a decade, the authors have developed a successful strategy to deal with these challenges, including: - A thorough analysis of the challenges associated with very large information systems - An assessment of possible strategies for the development of these systems, resulting in managed evolution as the preferred strategy - Describing key system aspects for the success of managed evolution, such as architecture management, integration architecture and infrastructure - Developing the necessary organizational, cultural, governance and controlling mechanisms for successful execution
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agility application architecture application development application domain application landscape Application Platform approach architecture management architecture programs autonomic computing banking budget business architecture business functionality business object model business requirements business units business value business-IT alignment challenge chief architect CIO basket CMDB concepts consumer context CORBA cost Credit Suisse Credit Suisse Switzerland database decisions defined dependencies domain architects domain model engineering enterprise service bus evolution strategy federated architecture functionality and data global governance model implementation important infrastructure integration architecture interface investments ISBN large information system large number layer legacy systems lifecycle managed evolution measurement middleware operations organization overall project portfolio management provider redundancy reuse Sect semantic Server Service Level Agreement Service-oriented architecture shown in Fig Side-Story specific sponsor meeting stakeholders standards structure subdomain systems management target architecture technical domain Technical Product Version technology portfolio tion xs:element