N-Tiered application design tool

Posted by Ben V on Stack Overflow See other posts from Stack Overflow or by Ben V
Published on 2010-04-21T15:41:15Z Indexed on 2010/04/21 16:03 UTC
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application-design

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object-oriented-design

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n-tier

I'm beginning the design of a medium-sized web application. I usually like to design from the top down, i.e., start at the highest level and design my way down. I am planning to have the following layers:

Presentation (PHP/Ajax)
Business Logic
Data Access
Database

Now I'd like to start sketching out the major objects in each layer and the interaction between layers. Is there a tool more specific to this purpose than just using a graphics/diagramming tool like Visio?

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