August 2007
Intermediate to advanced
342 pages
10h 52m
English
Content preview from SOA in PracticeBecome an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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Chapter 20. Epilogue
NOW THAT I’VE PRESENTED AND DISCUSSED SOA IN DEPTH, IT’S TIME TO RETHINK THE ANSWERS TO several questions that are commonly asked about SOA.
Is SOA Something New?
SOA does not introduce any newly invented concept. It is a paradigm that brings together existing concepts and practices for a specific set of requirements. You might even say that SOA is nothing but the application of brainpower and pragmatism for distributed systems. Look at existing successful integrated large system landscapes, and you will find all the concepts mentioned in this book.
One improvement of SOA might be the fact that Web Services (despite all its flaws) introduces a new standard for interoperability.
Another important aspect of SOA, which represents a revolutionary approach different from what we’ve typically seen before, is the acceptance of heterogeneity. In the past, far too many solutions were based on the idea of homogenization. Yet in systems beyond a certain size, homogeneity is simply not possible. Homogeneity does not scale, which means that any approach that requires homogeneity will sooner or later fail.[23] Accepting heterogeneity changes the way we design large system landscapes. This mental shift might be a small step, but it can have dramatic consequences (similar to agile programming, which accepts that requirements change instead of trying to fight against this fact).
Does SOA Increase Complexity?
There is no doubt that distributed processing is more complicated than ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.