RE: Application design & architecture

I'm not too sure that a comprehensive discussion on design & architecture
has really occurred.  Lots of teasers, but not a lot of meat and potatoes...
It's my opinion that choice of architecture is mostly influenced by the
choice of tools that are available to the application designer and/or
developer.  

IBM is steering the iSeries into SOA, which gives us a LOT of flexibility in
terms of deployment.  I don't know as much about SOA as I'd like...  I
believe that well designed ILE applications can easily be deployed via SOA
to extend the reach of our applications.  I also believe that most iSeries
software is poorly designed for deployment via SOA.  As I recall, there were
some useful discussions of MVC (Model-View-Controller) designs that are
probably on target for this topic.  Careful design of the underlying APIs
(ie, remove pop-up screens, error handling, etc.)

I hesitate to say much more, since I'm testing these waters too...  I still
have too much to learn, and nobody to guide...  I'll find any discussion on
these topics helpful.



Eric DeLong
Sally Beauty Company
MIS-Project Manager (BSG)
940-297-2863 or ext. 1863



-----Original Message-----
From: midrange-l-bounces+edelong=sallybeauty.com@xxxxxxxxxxxx
[mailto:midrange-l-bounces+edelong=sallybeauty.com@xxxxxxxxxxxx]On
Behalf Of Geeky400
Sent: Friday, May 05, 2006 12:13 PM
To: MIDRANGE-L@xxxxxxxxxxxx
Subject: Application design & architecture


Good afternoon,

There have been a few discussions in here and a fair few publications 
where application design and architecture has been discussed. I am now 
wondering whether the concepts have been proven and put into real life 
applications.

 From what I could gather by google-ing around, searching the 
midrange.com archives, reading IBM publications, redbooks and white 
papers, I can only find utlra simplistic RPG examples which cannot be 
extended to a standard business application.

This is why I am wondering whether the 4-tier RPG application 
architecture is just a concept or if it has been successfully implemented.


Any feedback would be appreciated

G4!






                
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