Highly available portal golden and SOA reference architecture

Now, let's look at how A2Z Bank realized each layer, based on the architectural principles described by IBM SOA reference architecture and best practices. We always recommend looking at reference architecture and best practices to be reused in a business or technology development effort. The following diagram contextualizes the IBM layered SOA architecture to the A2Z portal architecture. On one hand, we have one to five layers of the service-oriented architecture. Portal sits on the presentation layer but also integrates into business processes, composite services, and enterprise components. Layer six relates to the integrated architecture at a high enterprise level. Layer seven relates to the Quality of Service (QoS), the security management, and monitoring, meaning to some of the nonfunctional aspects of a layered architecture. Adding to the canonical IBM layered SOA architecture, A2Z Bank uses a set of principles (described...