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Semantic Software Design by Eben Hewitt

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Chapter 7. The Application Aspect

Most applications today are, or should be, service oriented. With the core of your software product or application built as services, you will gain clarity, high cohesion, the ability to scale, and improved portability, and provide the basis for a platform.

I tend not to be too zealous about following strict community dictates just because, say, the RESTafarians demand things be done a certain way. I rather try to find the true, concrete advantage in some dicta, and then, if there is a practical value to it, I’ll choose to follow it. For example, it doesn’t do you much good if I simply insist that you religiously follow the HATEOAS (Hypermedia as the Engine of Application State) creed because it’s important, and you’re not beholden to me in any regard. There are plenty of times when it makes considerable sense to use verbs and not nouns, or to use ProtoBuf or Avro over hypermedia. There is no silver bullet, and there is no one perfect way. There are the constraints, tools, knowledge, and goals that you and your team have, and that’s the important thing to foreground. So please keep that in the back of your mind through this chapter.

In this chapter, we cover the fundamental guidelines for good service design that I use with engineering teams. Although there are certainly other helpful directions you can offer, these are what I find most pragmatic and useful. Doing just these will get you a very long way.

Embrace Constraints

It is not worth it ...

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