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Thomas Erl

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Top Stories by Thomas Erl

It's always good to get an idea of the big picture before diving into the details of any technology-centric topic. For this reason, we'll take the time to briefly mention the overarching goals and benefits associated with service-oriented computing as they relate to Web Service contract design. Because these goals are strategic in nature, they are focused on long-term benefit - a consideration that ties into both the design and governance of services and their contracts. An understanding of these long-term benefits helps provide a strategic context for many of the suggested techni... (more)

A Look Ahead to the Service-Oriented World

BEA recently announced that it is broadening its SOA consulting practice, and that it has created a tool companies can use to learn about SOA and figure out how prepared they are to transition to the new architectural model. While BEA and other major vendors, such as IBM and Microsoft, continue to deepen their investments in SOA, many of us are still struggling to understand what SOA actu... (more)

SOA Pattern of the Week (#1): Service Façade

One of the fundamental goals when designing service-oriented solutions is to attain a reduced degree of coupling between services, thereby increasing the freedom and flexibility with which services can be individually evolved. Achieving the right level of coupling "looseness" is most often considered a design issue that revolves around the service contract and the consumer programs that ... (more)

SOA Pattern of the Week (#4): Service Normalization

Like data normalization, the Service Normalization pattern is intent on reducing redundancy and waste in order to avoid the governance burden associated with having to maintain and synchronize similar or duplicate bodies of service logic." You can see it introduces the Pattern on our publisher page. When designing data architectures, you can easily end up with different databases or even... (more)