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Design Patterns and nTier for n00bs - WTF?

Hi all,

I'm currently writing an application using the .NET Platform (C# 3.5). I"m not a professional developer but I can code at an intermediate level - let's get that out of the way first. I want to try and 'architect' the application properly from the start but unfortunately that means probably doing things that I don't know exist ... enter design patterns.

Can anyone offer any advise on design patterns for someone like me? Which one would be the best to use for a site that, for the sake of example, is like Flickr? There are members, there are photos etc.

Also, if the application as a UI and then needs to update member information, should the UI talk to a model layer which, in turn, talks to a data layer? Or is it ok for the UI to talk directly to the database?

I realise these might be entry-level questions for a pro dev but they're pretty mind-boggling for someone like me. :)

Thanks!

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marklorenz

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marklorenz

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Number5ix

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Hmmm interesting. I've got a couple of observations/questions there. Because I'm writing the app using C# wouldn't trying to use MVC be a little tough? MVC for .NET is still only in Beta after all and I've heard about .NET's architecture not really working with MVC for a couple of reasons, some of which are the viewstate model and the requirement for rewritten URLs.

I understand the value of class/sequence/state diagrams but I would've though they were more aimed towards commercial/professional applications where the various layers and interactions are going to be looked at by different teams that aren't necessarily in contact and working together the entire time.

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marklorenz

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Number5ix

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Not exactly what I was after but this was a question without one "correct" answer. I'm splitting the points as I believe marklorenz helped somewhat when nobody else would but no single response was the exact solution.