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From the vice president and chief technologist for SOA at Oracle Corporation

Dave Chappell

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Top Stories by Dave Chappell

The past several years have seen some significant technology trends, such as service-oriented architecture (SOA), enterprise application integration (EAI), business-to-business (B2B), and Web services. These technologies have attempted to address the challenges of improving the results and increasing the value of integrated business processes, and have garnered the widespread attention of IT leaders, vendors, and industry analysts. The enterprise service bus (ESB) draws the best traits from these and other technology trends to form a new architecture for integration. The ESB concept is a new approach to integration that can provide the underpinnings for a loosely coupled integration network that can scale beyond the limits of a hub-and-spoke EAI broker. An ESB is a highly distributed, event-driven, enterprise SOA that is geared toward integration. It is a standards... (more)

Universal Middleware: What's Happening With OSGi and Why You Should Care

The Open Services Gateway Initiative (OSGi) Alliance is working to realize the vision of a "universal middleware" that will address issues such as application packaging, versioning, deployment, publication, and discovery. In this article we'll examine the need for the kind of container model provided by the OSGi, outline the capabilities it would provide, and discuss its relationship to complementary technologies such as SOA, SCA, and Spring. Enterprise software is often composed of large amounts of complex interdependent logic that makes it hard to adapt readily to changes in r... (more)

ESB Myth Busters: 10 Enterprise Service Bus Myths Debunked

Since releasing my latest book, Enterprise Service Bus (O'Reilly Media, 2004), I have been doing a fair amount of visiting corporations, conducting seminars, and generally discussing with enterprise architects the subject of enterprise service-oriented architecture (SOA) and how an enterprise service bus (ESB) backbone can be leveraged to provide a framework for an enterprise SOA. Along the way, I have been asked many questions about the nature of an ESB. I have also fended off some misconceptions that have been growing in the general IT population regarding what an ESB is and wh... (more)

The Enterprise Service Bus (ESB) Delivering SOAs

Now that the WS-* specifications have become more mature, and SOA is becoming the new architectural pattern for enterprise infrastructures, there are new and unique architectural challenges that need to be addressed in order to fully enjoy the capabilities SOA provides. In order to fully exploit the interoperability that advanced Web Services provide, a SOA infrastructure must support operational flexibility, a heterogeneous application environment, scalability to support global deployment, and the ability to be managed and monitored from a central point. The enterprise service b... (more)

Oracle Fusion Middleware 11g Launched

Today is the day we officially launch Oracle Fusion Middleware 11g. Fusion Middleware 11gR1 is the result of a herculean effort that is 3+ years in the making. The major areas of investment have been: The completion of the integration between Oracle and BEA products into unified suites.  This matches to the month the schedule that we had committed to publicly when announcing the BEA Strategy last June.  This continues our excellent track record of buying best-of-breed software and integrating it together into a common environment. Improving the efficiency of modern data centers ... (more)