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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

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 application's success, the potential to overwhelm your systems has become very real, and may happen at times when you least expect it. How do we get ahead of this trend? Given that memory and storage are always increasing in the realm of enterprise computing, software needs to keep up with the... (more)

Service-Oriented Integration: Making the Right Choices to Support Next-Generation Integration

  Applications are increasingly being developed "built-to-integrate," providing the ability to easily expose key functionality through commonly defined interfaces. Gartner calls this concept SODA, or Service-Oriented Development of Applications, fitting into its overall Service-Oriented Architecture landscape. When applied to the ever-present integration challenge, SODA represents a transition to service-oriented integration. In this presentation, Chappell will examine the leading choices for supporting service-oriented integration: enterprise service buses (ESBs), integration ... (more)

Reliable SOAP for Web Services Messaging Has Finally Arrived! Leading IT Vendors Join Forces to Create Web Services Reliability

(January 14, 2003) - On Thursday January 9, Sonic Software and a number of other leading IT vendors, including Fujitsu Limited, Hitachi, Ltd., NEC Corp, Oracle Corp., and Sun Microsystems, announced a proposal for a new Web services specification for reliable messaging: Web Services Reliability (WS-Reliability). The companies plan to submit WS-Reliability to a standards body on a royalty-free basis in the near future. Along with security, reliable asynchronous communications has been one of the gaping holes in today's Web services architecture. Lack of reliability, due to the inh... (more)

WS-ReliableMessaging Interop Summit - Publicly Available Meeting Notes

I recently attended the WS-ReliableMessaging Interop fest, hosted by IBM. IBM has published the results. The publishing of the results is something that the legal agreement allows the spec authors to do. A public version of the legal agreement and the test scenario document can be found here. The interop participants included - BEA Systems, Inc Blue Titan Software, Inc. IBM Corporation Microsoft Corporation NEC Laboratories America, Inc. Sonic Software Corporation Systinet Corp. TIBCO Software, Inc. The results, as written in the public report, exceeded expectations. We actually finish... (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)