Capabilities of an Architecture are nonfunctional, they are observable, and measurable. The measures of those focus on qualifying the system under analisis, from diferent point of view, including: scalability, manageability, performance, availability, reliability, and security, which are defined in terms of context.
Some research has examined different factors, criterias and induce metrics to evaluate sofware quality, resource utilization and investment utilization, hardware utilization efficiency, reliability, response time, ease of terminal use, content of the database, aggregation of details, human factors, and system accuracy.
This Figure illustrate an interesting sumary:
And this other, it lists and explain some well-known system quality measures:
For more details, is recomanded to check:
SCEA Sun Certified Enterprise Architect for Java EE , Study Guide Exam 310-051
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