|By Sean Rhody||
|March 17, 2007 01:30 PM EDT||
This month I thought I'd put on my sales hat for a moment and talk about what it takes to actually sell someone on the concept of using service-oriented architecture as the underlying paradigm for an organization's information technology implementation and direction. In part this is because there's still a good deal of resistance to SOA as that basis.
In the early days of trying to persuade corporations that SOA is a good thing, there was a great deal of commotion around the issue of security. The perception was that services were not really secure - and in fact, the very basic Web services standards of HTTP, SOAP, WSDL, UDDI and XML are not secure, other than perhaps with an SSL layer. But we've managed to put a stake in the heart of that specter, and worries about security now revolve more around proper implementation than around the actual availability of capabilities of an SOA to provide security.
Yet, while this had seemed at one point to be the sole stumbling block, why haven't we seen the floodgates open and a million SOA implementation take place? This is the key question.
SOA for many is like source code management. Unquestionably, source management is a good thing when we talk about software development, but the question that always comes to mind is - how do you quantify the goodness? Is there a return on the investment, which includes time, dollars, and software? Conventional wisdom says there is (and I personally believe it strongly), but at the same time, when was the last time someone actually presented actual cost savings for source code management.
I bring this up to point out the similarity of the situation with respect to service-oriented architecture. SOA provides key advantages that are fairly easy to see - loose coupling, application composition rather than development, the ability to manage services on a granular basis, and finer control of the actual work done by information technology. Integration, which becomes crucial the minute a business has more than one software system, is the key facet of SOA that makes every technologist realize that SOA is a better way to do software and implement processes.
The key difficulty with selling SOA as a concept for how to do technology is quantifying the actual benefit that results from using services. In business terms, determining the ROI of a change to SOA is what's important, but, perversely, it's also very hard to capture the value of SOA in absence of some business change to accompany it.
Look at it this way - it's easy to say, and also easy to understand and agree on the fact that SOA makes software integration much easier. But what is the dollar value of that ease, and how much of an effect will it have over time? That's the difficult question that is holding back funding of SOA in the current world. Sometimes you can quantify parts of it, such as saying you no longer need a particular EAI package, so your license, maintenance and operating costs could be viewed as the cost savings against which the cost of the implementation could be measured. Those cases are the simple ones, the ones where it's easy to make the case to go ahead with SOA. Unfortunately, in most shops, the case for a pure SOA conversion is much less clear. The ability to do something "better" needs to be correlated to a reduction in cost, or an increase in productivity, or both.
Most SOA approaches are couched in the context of some business improvement or other. It might be the deployment of a new ERP system, where the benefit of decoupled services can be quantified more easily due to the nature of the services and the cost of maintenance versus the same task with monolithic applications. Many IT shops are making SOA concepts - services, service buses, asynchronous invocations, and the like - a part of future designs and hoping at some point, when the shop looks more service oriented than not, that funding to go the rest of the way will be easier to acquire. That may be the way SOA comes into full fruition, not with a bang, but with a series of small improvements. Happy holidays and have a great new year.
This is a no-hype, pragmatic post about why I think you should consider architecting your next project the way SOA and/or microservices suggest. No matter if it’s a greenfield approach or if you’re in dire need of refactoring. Please note: considering still keeps open the option of not taking that approach. After reading this, you will have a better idea about whether building multiple small components instead of a single, large component makes sense for your project. This post assumes that you...
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Right off the bat, Newman advises that we should "think of microservices as a specific approach for SOA in the same way that XP or Scrum are specific approaches for Agile Software development". These analogies are very interesting because my expectation was that microservices is a pattern. So I might infer that microservices is a set of process techniques as opposed to an architectural approach. Yet in the book, Newman clearly includes some elements of concept model and architecture as well as p...
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"We provide DevOps solutions. We also partner with some key players in the DevOps space and we use the technology that we partner with to engineer custom solutions for different organizations," stated Himanshu Chhetri, CTO of Addteq, in this SYS-CON.tv interview at DevOps at 18th Cloud Expo, held June 7-9, 2016, at the Javits Center in New York City, NY.
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SYS-CON Events announced today that LeaseWeb USA, a cloud Infrastructure-as-a-Service (IaaS) provider, will exhibit at the 19th International Cloud Expo, which will take place on November 1–3, 2016, at the Santa Clara Convention Center in Santa Clara, CA. LeaseWeb is one of the world's largest hosting brands. The company helps customers define, develop and deploy IT infrastructure tailored to their exact business needs, by combining various kinds cloud solutions.
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Jul. 24, 2016 09:00 AM EDT Reads: 868
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Ovum, a leading technology analyst firm, has published an in-depth report, Ovum Decision Matrix: Selecting a DevOps Release Management Solution, 2016–17. The report focuses on the automation aspects of DevOps, Release Management and compares solutions from the leading vendors.
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Let's just nip the conflation of these terms in the bud, shall we?
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They are not.
One is about the application. The other, the network. T...
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This digest provides an overview of good resources that are well worth reading. We’ll be updating this page as new content becomes available, so I suggest you bookmark it. Also, expect more digests to come on different topics that make all of our IT-hearts go boom!
Jul. 24, 2016 12:00 AM EDT Reads: 3,471