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Quest for True SOA

Alex Maclinovsky explains why his vision of Governance differs from those prevailing in the industry. Based on his precise understanding of what a SOA platform should do, he defines a unified view of SOA Governance which he claims "has the potential to take the imperfect SOA platforms and implementations ... and transform them into true Service Oriented Architectures..."

Alex Maclinovsky
on Sep 10, 2008
SOA Governance: An Enterprise View

SOA architect Michael Poulin explains the necessity for SOA governance to ensure an SOA initiative's success, and explains the role the OASIS SOA Reference Model and the accompanying SOA Reference Architecture assign to SOA Governance. Michael observes SOA governance specifics from the enterprise perspective and illustrates them with several examples of SOA Governance policies.

Michael Poulin
on Aug 20, 2008
Book Review: Applied SOA

Applied SOA is a new book on Service Oriented Architecture written by 4 leading SOA practitioners that aims at making you successful with your SOA implementation. In particular, this book is going to help you tie your SOA initiative with your Enterprise Architecture, IT Governance, Core Data and BPM initiatives.

Jean-Jacques Dubray
on Aug 04, 2008
Service-Oriented Development with Consumer-Driven Contracts

In this article, Ian Robinson discusses how "consumer-driven contracts", in the form of "stories for services" and unit tests exchanged between service development streams, can strengthen the service-oriented development lifecycle. In contrast to contracts defined from the POV of the provider, consumer-driven contracts result from combining the demands of all known service consumers.

Ian Robinson
on Jul 27, 2008
Beyond SOA: A New Type of Framework for Dynamic Business Applications - Part II

In this second part of their article, the authors explore the architecture of Dynamic Business Applications and introduce the concept of a Resource Container. They demonstrate how this architecture can be layered on top of JEE and how it impacts implementation productivity.

Michael Chervenic Vasile Buciuman-Coman
on Jul 07, 2008
Rationalizing the Presentation Tier

Thin client paradigm characterized by web applications is a kludge that needs to be repudiated. Old compromises are no longer needed and it's time to move the presentation tier to where it belongs. In this article, Ganesh Prasad and Peter Svensson explains how and why.

Ganesh Prasad Peter Svensson
on Jul 04, 2008
AtomServer – The Power of Publishing for Data Distribution

In this article, Bryon Jacob and Chris Berry introduce AtomServer, their implementation of a full-fledged Atom Store based on Apache Abdera. The authors spent the last year implementing an Atom Store for Homeaway, their employer, and are mnow making the Atom Store framework available as open source.

Chris Berry Bryon Jacob
on Jul 02, 2008
Development

An Introduction to Virtualization

It is easy to think that virtualization applies only to servers. In reality the recent resurgence of the concept is being applied at a variety of levels including networking, storage, and application infrastructure. In this introduction to the topic InfoQ dives into each area describing its uses as well as benefits and disadvantages.

Scott Delap
on Jul 02, 2008
REST Anti-Patterns

In this article, Stefan Tilkov explains some of the most common anti-patterns found in applications that claim to follow a "RESTful" design and suggests ways to avoid them: tunneling everything through GET or POST, ignoring caching, response codes, misusing cookies, forgetting hypermedia and MIME types, and breaking self-descriptiveness.

Stefan Tilkov
on Jul 02, 2008
Choosing between Routing and Orchestration in an ESB

In this article, Adrien Louis and Marc Dutoo discuss the differences and relative merits of using orchestration vs. routing in a typical ESB setup. They discuss various approaches to connecting services, from low level ones like customized routing, to high-level ones using business oriented approaches like workflow and orchestration, and conclude that there is no one-size-fits-all solution.

Adrien Louis Marc Dutoo
on Jul 02, 2008
David Nuescheler on JCR and REST

In this interview, Day CTO and JCR Spec Lead David Nuescheler discusses the benefits of JCR, the Java Content Repository standard, the difference between an API such as Atom/Atom Publishing protocol and JCR, JCR's connection to REST, and Apache Sling, a new kind of Web framework.

Stefan Tilkov
on Jun 10, 2008
ESB Topology Alternatives

In this article, Adrien Louis discusses the pros and cons of two topology alternatives for ESB-based SOAs: A single ESB for the company vs. a system of "departmental" ESBs that are connected to each other. Adrien describes how the alternatives affect issues such as administration, business monitoring, governance, reliability, and orchestration.

Adrien Louis
on May 23, 2008