The main benefits of the N-tier/3-tier architectural style are:
+ Maintainability: Because each tier is independent of the other tiers, updates or changes can be carried out without affecting the application as a whole.
+ Scalability: Because tiers are based on the deployment of layers, scaling out an application is reasonably straightforward.
+ Flexibility: Because each tier can be managed or scaled independently, flexibility is increased.
+ Availability: Applications can exploit the modular architecture of enabling systems using easily scalable components, which increases availability.
Saturday, January 1, 2000
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