In this article Michael Poulin explores the different contexts in which SOA patterns are applied; how the products from different vendors influence these patterns and its effect on the responsibilities of business and IT. One such product is the Enterprise Service Bus (ESB); Michael evaluates a few patterns related the ESB products and their application under different contexts.
In this article, Michael Poulin discusses agility-to-market changes that IT can gain using a strategy oriented onto the services. Using concepts of service-orientation as the major construct of the technical product portfolio, accompanied by a techniques he calls Spline Tactics, he examines how businesses can achieve strategic agility.
Michael Poulin elaborates on the differences between of governance and management and tries to explore the 'wonderland' of governance in a service-oriented environment. He defines SOA Governance, explores the relationship between governance and enterprise architecture, and discusses accountability and ownership of governance efforts, and how practitioners can instrument SOA governance.
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.
Based on real-life cases from the financial industry, Michael Poulin shows how to use 7 service oriented principles, Composability, Autonomy, Contracts, Abstraction, Loose Coupling, Reusability, and Discoverability, to handle service behavior in the execution context and UI changes, and how to prepare for unexpected changes.
