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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

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 when, where, and how it can be used. I have gathered together the most popular questions and misconceptions, and offer some clarity in the form of a "top ten" list. Myth #1. ESB is just a new name for EAI. While many IT architecture groups are focusing on building SOAs, they still inevitably be... (more)

Improving the Efficiency of SOA-Based Applications

According to Moore's Law [1], processing speed and storage capacity have been doubling about every two years since the invention of the integrated circuit in 1958. Yet it seems that our propensity for building larger more complex software systems that anticipate these improvements inevitably outpace the exponential growth in capacity to support these systems. SOA is becoming more broadly adopted, along with the practice of using XML as a means of communicating data between services and the more rapid adoption of applications to Internet scale. Staring you in the face of your app... (more)

Reconstructing J2EE-Java Business Integration Meets the Enterprise Service Bus

Web services have given newfound importance to service-oriented architectures and promise to drive down the cost of integration by providing a standards-based approach to interoperability between applications. The trouble is, what people really want is a new way of doing integration. Until now, we haven't really had a way to incorporate Web services into a meaningful architecture for integrating applications and services into a fabric that spans the extended enterprise in a large-scale fashion. With the advent of the enterprise service bus we have that architecture. The Java Bus... (more)

ESB Integration Patterns

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 conc... (more)

SOA and eXtreme Transaction Processing (XTP)

David Chappell's Blog Across financial services firms we have been seeing a new set of business priorities. There are the "grow the business" priorities that are primarily centered around things like improving customer intimacy and increasing competitive differentiation.  here are also ongoing issues of compliance to regulation and risk mitigation while also keeping an eye towards improving cost efficiency. The thing that hasn't changed is that IT is viewed as the enabler to overcome these challenges.    Financial institutions are pushing the envelope and require more processing... (more)