Re: Web apps on the AS/400

Nothing mysterious about it.  The application layer serves as the "controller" 
of the traditional Model-View-Controller design.  The application instantiates 
and initializes the appropriate server and send an initial request.  It 
analyzes the response, formats the appropriate data models, and then displays 
the corresponding JavaServer Page.  The JSP in turn materializes the views of 
the data models and presents them to the user.  The user enters their response, 
which is sent back to the application.  The application then reverses the 
process, taking the data from the user and putting it back into the data 
models.  Based on the user response, the application determines the next course 
of action: either assemble another request for the server, or transfer to 
another application.

And so it goes.


---------- Original Message ----------------------------------
From: "Leif Svalgaard" <leif@leif.org>
Reply-To: MIDRANGE-L@midrange.com
Date: Thu, 15 Mar 2001 15:13:29 -0600

real nice Joe, but tell me what is this mysterious "application layer".
The two other layers I understand, but "Application" as a layer?

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