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Service-orientation is a way of thinking in terms of services and service-based development and the outcomes of services. Service-Oriented Architecture (SOA) is an architectural style that supports service-orientation. Another might be a shortage of thesauri at The Open Group headquarters. One reason for that is service-oriented architecture’s apt name. The Open Group’s definition of SOA is almost a tautology. Due to its fragmented past, SOA has more than one definition. Later, that paper grew into the SOA Source Book. It evolved for several years before The Open Group published a white paper in 2007. Service-oriented architecture’s definition has always been a moving target. Then we’ll see how you can apply its design concepts to your work. We’ll cover why it’s an architectural pattern that isn’t going anywhere. While microservices dominate the landscape, reports of SOA’s death have been greatly exaggerated. It’s also branched into several variants, including microservice architecture. The term first appeared in 1998, and since then it’s grown in popularity. Core to this approach is SOA / Messaging - and, of course, DDD :)Service-oriented architecture (SOA) has been with us for a long time. So, in conclusion, IT absolutely *has* to get to a point where parts (maybe then BCs) of a broader "system" have individual life cycles and can be maintained or even deprecated in isolation. So the next time someone comes to the client suggesting SOA / Messaging they dismiss it. The *only* issue I have with SOA / Messaging is that there are probably *many* systems touted as SOA / Messaging when indeed they are not. At some point these systems will start to prove themselves. But this is true for custom solutions as well.Īnd this is why I think the world still needs to go the SOA / Messaging route. But at some point it becomes cumbersome to implement changes. ERP may give them a good deal of what they need out-of-the-box. It all boils down to how effectively the solution is going to satisfy the business need. And they trust these people implicitly - irrespective of their actual ability or knowledge.Īll systems have a life cycle and will eventually die. In many cases the people have one or more others that they trust. The problem is, and I am sure all of us have seen this, is that many of these strategic decisions are taken by people that actually have no idea about the impact of the decision. There will always be folks that want bespoke development that results in an all-encompassing solution. There will always be folks that want an all-encompassing solution such as an ERP implementation. There will always be a need for bespoke development. I have worked at places that regard IT as part of the operations department and IT is there to simply keep the business going and react to business decisions as opposed to being involved in steering the business in an *informed* IT direction.Īnyway.
Domain driven design vs soa software#
The problem with many software solution decisions is more around politics and where higher management reckons IT fits in. Or I have to develop a DDD ERP in order to increase revenue ? Will there be space for DDD in regular IT systems for bigger clients ? Sometimes fear and tend to choose a worse "well-known" solution. Of the clients needs, many companies seem to be driven by trends and More technically designed and thus more directed to the business specifics Popular among mid-size companies what make me think if it really worth toĬontinue to develop software from scratch.īriefly speaking, my personal impression is that although DDD software is Standard business processes are there and there is a "experienced vendor"īehind the product. However I have noticed that large corporations which are the biggest ITĬonsumers preffer to have a all-packed solution such as an ERP.Įven if ERPs have disadvantages such as many business re-engineering toĪdequate to the ERP standard, they are preffered since all I can clearly see theīenefits for the clients in terms of competitive advantage specially in the Other factors, a lot of thinking in terms of correct business representationĭesign patterns such as layers, factories, etc. I like very much the DDD way of producing software which involves, among