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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)

Distributed Logging Using The JMS

Every software system has logging requirements so application processing can be monitored and tracked. Modern distributed systems, which are usually based on application frameworks, require a logging solution that can cope with multiple processes on multiple hosts sending logging information to a single logging service. Many application frameworks widely used today, whether they're high-level frameworks like J2EE application servers or low-level frameworks like CORBA ORBs, don't provide a distributed logging facility for application code. Using JMS queues to log application mess... (more)

The New Integration Architect: You

According to Gartner, Inc., vice president and research fellow Roy Schulte, "a new form of enterprise service bus (ESB) infrastructure will be running in most major enterprises by 2005." ESBs combine Web services, enterprise messaging, transformation, and routing to provide an integration network that can span global enterprises and encompass potentially thousands of application end points. Application integration is a top priority among CIOs, and as the current IT value center in the enterprise, IT organizations must shift their focus from application development to application ... (more)

Will the Real Reliable Messaging Please Stand Up? Is it WS-Reliability, WS-ReliableMessaging, or WS-ReliableConundrum?

Open standards for reliable Web services messaging, such as WS-Reliability, can provide the missing link to bridge the gap between organizations and help make Web services a truly enterprise-capable technology for standards-based systems integration, says Web Services Journal technical editor David Chappell. 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 inherent nature of using SOAP over protocols such as HTTP, is one of the biggest obstacles to the adoption of Web s... (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)