What is the difference between a multi-user web application and a multi-layer web application?

Question

What is the difference between a multi-user web application and a multi-level web application?

Answer 1

Layers Refer to certain levels of abstraction in the application (software), where as levels. Refer to the physical location of these layers (hardware)

App.Layer == "Software" ----- logic
App.Tier == "Hardware" ------ physical


Layers:
1) presentation layer
2) business -level
3) level of access to data
4) data layer
5) external level of access to the system

Levels:
1) Presentation level (web server)
2) Data level (database server)

Answer 2

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Answer 3

@Cybernate:

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Answer 4

A multilayer application means the logical separation of functionality into assemblies, for example, a data layer, a presentation layer, a business layer, etc. All assemblies can also be deployed on the same physical machine.

A tiered application deals with physical deployment.