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Commentary on SOA, Enterprise Architecture, Application Modernization and Cloud Computing

Lawrence Wilkes

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Top Stories by Lawrence Wilkes

Or how to connect the architecture dots to support a smart connected planet. Introduction The notion of a connected planet is far from new. However, the number of connections as illustrated in figure 1 is growing at an exponential rate, and it is fast becoming a reality in which many organizations must operate. However, I doubt many organizations are preparing for this in a systematic way. More likely, experience suggests that dozens of connected ‘solutions' will permeate the organization via myriad routes and just add to the complexity of the business and IT landscape, becoming yet more spaghetti that someone is left to untangle. Architecture is key to dealing with this. However, architectural practices must evolve to themselves become more connected, and not a set of isolated disciplines as they are often practiced today. Hence, in this note as well as considering ... (more)

In the Service Oriented Cloud, All Roads Lead to SOA

Cloud Computing is intrinsically service-based. But this is not just in the highly generalized sense of the term ‘service’, but also in the more specific Service Oriented Architecture (SOA) use of the term, where capabilities are provided via published service interfaces. In this research note we consider why SOA should not be forgotten just because more fashionable terms have risen to the top of the toybox. It might be easy to conclude that SOA was yesterday’s issue. In fact according to some pundits SOA is dead and business transformation, application and IT modernization, and... (more)

Cloud Computing Reference Architectures, Models and Frameworks

Reference ‘Things’ A Reference Architecture (RA) “should” provide a blueprint or template architecture that can be reused by others wishing to adopt a similar solution. A Reference Model (RM) should explain the concepts and relationships that underlie the RA. At Everware-CBDI we then use the term Reference Framework (RF) as a container for both. Reference architectures, models and frameworks help to make sense of Cloud Computing. Unfortunately, such formality is absent from the various reference architectures, models and frameworks that have been published for Cloud Computing; t... (more)

Application Migration Patterns for the Service-Oriented Cloud

As well as deploying new applications to the cloud, many organizations will also be considering the opportunities to migrate current applications to the cloud in search of reduced costs or SLA improvements. In this research note I consider several migration alternatives, expressed as a set of patterns. The patterns should serve as a useful way to communicate intent. When someone suggests that a current application could be migrated to the cloud, then these patterns should be a simple way to ask "what exactly do you mean by that, and what do you hope to achieve by doing so?" The ... (more)

Making Sense of Cloud Computing

The terms virtualization, utility computing and Cloud computing are often used interchangeably which can be very confusing. A new report I have just authored aims to provide clarification - to identify the similarities and differences in those characteristics, and provide a framework in which organizations can decide which capabilities they require in specific situations – as it is unlikely that one model alone will suit all their requirements. A visitor from outer space would be forgiven for thinking that virtualization, utility computing and Cloud computing are different capa... (more)