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  • An Introduction to Apache ODE

    In this new InfoQ article, Paul Brown introduces Apache ODE, an open source implementation of the WS-BPEL 2.0 standard. ODE differs from other BPEL engines in that it is delivered as a component rather than a framework for developers looking to add orchestration functionality to their systems. Paul introduces ODE's features by showing how to deploy and execute a simple process.

  • "Code First" Web Services Reconsidered

    In this article, Dennis Sosnoski questions the conventional wisdom that a contract-first approach to web services development, i.e. starting from WSDL, is superior to starting from code. He shows how the JiBX framework can be used to practice start-from-code development without incurring the disadvantages, specifically without coupling implementation and interface too tightly.

  • Service Composition

    In this article, Boris Lublinsky discusses the main approaches to service composition, both from design and implementation point of view, and outlines the benefits of using orchestration. Topics covered include hierarchical vs. conversational composition, composition topologies, and the pros and cons of difference implementation approaches.

  • Implementing Automated Governance for Coding Standards

    Most development organizations of a significant size have some form of coding standards and best practices. Simply documenting these standards and keeping them up to date can be a significant challenge and enforcing them even harder. Our organization has found that enforcing coding standards and best practices in an automated fashion through our build process has been highly effective.

  • Roles in SOA Governance

    To make sure SOA succeeds, many vendors, analysts, consultants and practitioners agree that Governance is a critical ingredient for a successful SOA initiative. This article explores a potential set of roles for successful SOA Governance, the roles of "SOA Domain Architect", "SOA Platform Architect", "Service Designer", "Business Service Owner", and "Technical Service Owner".

  • Eric Newcomer on the future of OSGi

    Eric Newcomer, co-chair of the OSGi Enterprise work group, talks about the evolution of OSGi and it's relationship to SOA and ESB. He discusses how he thinks OSGi will evolve over the coming years and whether or not it makes sense for Sun to adopt OSGi as the container model of choice."

  • Using ETags to Reduce Bandwith & Workload with Spring & Hibernate

    Gavin Terrill explores one of the lessor known facilities available to web developers, the humble "ETag Response Header", and how to integrate its use in a Spring and Hibernate based web app to improve application performance and scalability.

  • Bridging the gap between BI & SOA

    Business intelligence (BI) and service-oriented architecture (SOA) have conflicting principles and needs. SOA promotes hiding the data inside the services while BI needs that very data if we want to get meaningful predictions and alerts. This article will show you how you can combine SOA with EDA to solve the BI/SOA conflict and maybe even enhance your SOA.

  • Introduction to .NET 3.0 for Architects

    Mohammad Akif provides an overview of the release the .NET Framework 3.0. While there are no changes in the CLR there are significant additions to framework itself in the form or a new language, XAML, and brand new libraries like WPF, WF and WCF. In order to unleash its full potential Architects need to understand the changes and possibilities of this latest release of .NET.

  • Dynamic Routing Using Spring framework and AOP

    Vigil Bose shows how a business transaction can trigger business events dynamically for subsystem processing. The examples shown in this article uses Spring framework 2.0 and Spring AOP effectively to decouple the business service from the subsystem processing functionality.

  • Agile, Architecture and the 5am Production Problem

    Can refactoring and unit testing really create robust “working software” that survives the real world? In this story adapted from his book Release It! Michael Nygard contends that "abstractions leak": we need to attend to architecture, even in Agile projects, to guard ourselves against the 5AM failures that occur when foundational abstractions misbehave.

  • Service Firewall Pattern

    How can you protect a service against detect malicious incoming messages and prevent information disclosure on outgoing messages? In this sample chapter from Arnon Rotem-Gal-Oz' in-progress book SOA Patterns, Arnon explains how to use a Service Firewall to intercept incoming and outgoing messages and inspect them in a dedicated software component or hardware.

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