E-MailEnterprise Integration Architecture and Web Services
Integration remains one of the most important and difficult issues facing IT organizations today. Whether the integration is internal using enterprise application integration (EAI) or external using business-to-business integration (B2Bi), estimates are that at least 40% of IT budgets are directed to integration infrastructure. Multitiered computing, including Web-based applications, is quickly enhancing enterprise IT systems and provides the best hope for efficient and cost-effective integration. However, the bulk of the business processing today is still carried out by legacy systems and packaged applications, such as enterprise resource planning (ERP), customer relationship management (CRM), etc. Experience from the past decade and current trends tell us that critical business processing will continue to be executed on these systems and that IT organizations will be tasked to extend them to more modern interaction models, such as Web-based GUIs, and beyond the enterprise with Web services or B2Bi collaboration. Any migration of these existing systems to new access channels and advanced computing architecture and technique should occur incrementally. A big bang conversion from existing applications to new systems and architecture will not work. Instead, enterprise architecture should bridge the gap via a carefully planned transition and migration process.
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