Those were the days when we as Architects have to put effort on planning deployment architecture. Usually, in a typical System Architecture Definition document, ‘Physical View’ or ‘Deployment View’ will be one of the 4+ 1 views. Arriving at deployment architecture with the exact no. of infrastructure components like Servers, SANs, routers & switches, networks capable of handling a pre-defined bandwidth etc requires a series of activities that include capacity planning exercise, stress testing, load profiling analysis etc. ‘Application Agility’ is the driver behind many SOA and BPM initiatives. Applications were architected based on Service Oriented Architecture to respond to the changes in business rules or business processes because of market situations & regulatory compliance requirements, But ‘Application Agility’ will not alone provide true agility. Change is not only confined to business process / rules. Another dimension is ‘Volume’. Suddenly there can be a spike in no.
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