Model-View-Presenter and Three-Tier?

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Model-View-Presenter and Three-Tier?

What is the difference between the two architectures: Model-View-Presenter and Three-Tier?

I understand the definitions of each when read individually, but I can't readily see how they're different. Is it desktop vs web? I am currently developing a simple desktop application in Python to visualize a complicated data model via a GUI.

Thanks!

I think the main differences is that in MVP/MVC, the view gets to reach into the model to get data, while in n-tier, there's a stricter separation, where each tier is only allowed to interface with the tier directly above/below it.

Ryan Ginstrom 2010-06-28 23:52:52

I thought MVC was a triangle where each individual component was able to communicate with the other two. And I thought MVP was such that the Presenter had direct communication with the Model and View, which in turn only had indirect communication with the Presenter. This later description sounds a lot like Three Tier to me. Thus my confusion.

Who8MyLunch 2010-06-29 01:20:37

MVC is an UI pattern, three tier is an application architecture pattern. That is you can design your application with 3 tiers - UI, BL, data. And than use MVC in the UI tier.

2010-06-29 00:02:23

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Model-View-Presenter and Three-Tier?

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