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Architectural analysis can be viewed as a specialization of requirements analysis, with a focus on requirements that strongly influence the “architecture.” For example, identifying the need for a highly-secure system.
The essence of architectural analysis is to identify factors that should influence the architecture, understand their variability and priority, and resolve them. The difficult part is knowing what questions to ask, weighing the trade-offs, and knowing the many ways to resolve an architecturally significant factor, ranging ...