Independent Guidance for Migrating to the Service Oriented Cloud

David Sprott

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Top Stories by David Sprott

Given my (well-known and enduring) interest in all aspects of services, I have followed Martin Fowler's writing on microservices. But I will admit I always found the original paper more confusing than insightful. And in my client work I have resisted the temptation to use a microservices pattern, for precisely the reason that it would more than likely confuse. So I was interested to see the book Building Microservices by Sam Newman published last month, particularly as Newman is part of the Thoughtworks stable, which presumably means it is authoritative. 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 micr... (more)

Scaled Agile Factory - Going Beyond the Usual Suspects | @DevOpsSummit #DevOps

If you address the question of how to scale Agile projects by considering what framework to use, you are only looking at one aspect of the problem. Scaling is all about coordination – managing enterprise considerations and cross program dependencies, and the defacto frameworks (SAFe, LeSS and DAD) focus on the people and process dimensions. However, in combination with a factory approach you may be able to automate many of the compliance and dependency management issues. The question of how to scale Agile development has been around a while. In January 2015 I commented [1] on a c... (more)

Agile Self Governance By @DavidSprott | @DevOpsSummit [#DevOps]

I guess most readers of this blog know that Ireland went through a massive bust in 2008/9. The primary cause was a massive building bubble. And because the economy was dependent upon building related taxes, the crash was brutal. One of the side effects of the bubble was that building standards suffered. In one extreme case a block of apartments was constructed with no fire safety protection! There were many, many more prosaic examples. In my own case I had building works completed that had to be completely reworked within a couple of years! The reasons for the low quality were co... (more)

Time to Rain on the “Cloud Service Model” Parade

The Cloud community have been talking recently about Everything as a Service; they call it EaaS. At first hearing it’s an interesting idea, another acronym to complement IaaS, PaaS and SaaS. Unfortunately it’s rather like the tail wagging the dog!  The Cloud community use the term Service liberally but with minimal consistency. It must be said that the NIST reference architecture document has been incredibly helpful in sorting out the three Cloud service models of IaaS, PaaS and SaaS. However in order to read the document you have to suspend all your knowledge and belief of serv... (more)

The Microservices Pattern By @DavidSprott | @DevOpsSummit [#DevOps]

For those of us that have been practicing SOA for over a decade, it's surprising that there's so much interest in microservices. In fairness microservices don't look like the vendor play that was early SOA in the early noughties. But experienced SOA practitioners everywhere will be wondering if microservices is actually a good thing. You see microservices is basically an SOA pattern that inherits all the well-known SOA principles and adds characteristics that address the use of SOA for distributed, finer grained software services. And like all patterns, microservices are not appl... (more)