Overview of a tiered application architecture

By | October 29, 2015

Tiered

An approach to create physical division of activities as separate standalone processes called tiers. Tiers might contain multiple layers.

Benefits

  • Each tier can scale horizontally and can be load balances independently as needed.
  • The use of layers as tiers helps to control and encapsulate the complexity of large applications.
  • Better performance under load. As you scale tiers that are under load the distributed application performs better.
  • Low coupling.
  • Each tier can be unit tested and performance tested.
  • Allows for maintenance on tiers without affecting application as a whole.
  • Allows for better security by isolation access to resources.

Liabilities

  • Higher maintenance
  • Lower performance due to communication between tiers.
  • Complicated deployment strategy
  • Complicated Security Setups

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