Jason English

I’ve been asked a number of times recently by industry peers and technology journalists about “virtualization” as it relates to SOA. Well, there are in fact at least 3 distinct ways that you can use virtualization concepts in SOA, so I think that it would be good for me to give you a definition of those three, and then in the next few days I will blog on each one of them independently. Rich Seeley recently interviewed me for a SearchWebServices.com article on the first and most often mentioned type of virtualization I’ll introduce -- which is hardware virtualization. This is not a SOA specific thing.  This is when you’re running many copies of the operating system within one physical hardware device so that you can get independence of those several virtual machines from each other -- from a configuration, app server and operating system... (more)

Service-Oriented Virtualization - Can Virtual Environments Take Performance & Load Testing?

The iTKO SOA Testing, Validation & Virtualization Blog The practice and technology of Virtualization really has legs - it keeps moving forward, from hardware virtualization, virtual test beds, to virtual endpoints, to actually simulating the behavior of the software itself, which we're calling Service-Oriented Virtualization (or "SOV" if you need a TLA for it). Now we are seeing the Performance Lab getting into the action on this practice. For interconnected apps like SOA and serious enterprise integrations, the guys with the load testing firepower have tools like LoadRunner and ... (more)

Does Virtualization Allow Performance & Load Testing?

We've talked a lot in previous posts about how the practice and technology of Virtualization really has legs -- it keeps moving forward, from hardware virtualization, virtual test beds, to virtual endpoints, to actually simulating the behavior of the software itself, which we're calling Service-Oriented Virtualization (or "SOV" if you need a TLA for it). Now we are seeing the Performance Lab getting into the action on this practice. For interconnected apps like SOA and serious enterprise integrations, the guys with the load testing firepower have tools like LoadRunner and SilkTes... (more)

Cloud Computing – Adding a Fifth Dimension

Dan Woods provides an interesting analysis in Forbes, Parsing The Cloud, on where Cloud Computing may be going next. He makes a good case that the cloud will become more complex and diverse. He offers four drivers of this diversity. First, compliance is going to happen. Governments have already stepped in. The Swiss banking laws dictate that computers storing customer information must be housed inside its borders. Other countries may follow so they can tax, inspect, or otherwise exert control. Network topology will also affect the speed of data access. Different industries have... (more)

Agile SOA Across the Lifecycle - Part Five: IT and SOA Governance

This is the fifth of a six part series of posts on the Agile SOA life cycle. Here we will at look at IT and SOA Governance. With the introduction of agile, spiral, and scrum development methodologies, the traditional waterfall development approach of testing a near-finished app at the end of many Agile development cycles won't be agile at all, as the elements of the application are constantly changing.  Traditional models of IT governance will also not work. To aggravate testing, the service-oriented architecture (SOA) design pattern is used to make IT  more responsive to changes... (more)