RE: TRYING undestanding new AS Iserv -- MIDRANGE-L

Dan,

Client/Server apps are non-interactive.  I know there are tools that put a
GUI on green screen apps but I don't know for sure if the workload is then
non-interactive, I would assume so but just not certain.  And your right, if
all your interactive apps were converted to be a non-interactive workload
then you can get the same horsepower for less money.  An idea that I have
had in the back of my mind is converting all our green screen apps so that
the presentation layer is removed from the business logic.  The business
logic would run as batch jobs using data queues (or some other mechanism) to
communicate with the programs that just present the data to the user.  The
first step would make all of the presentation layer green screen programs,
the benefit is that the application looks and acts just like it did before
but now most of the processing is done in 'batch jobs' that pass the display
buffer back to the display programs.  At that point, it would be easy to put
a GUI or Web front end on the programs as it would only be presenting the
data to the user.   The back end would still be the same program performing
the business logic.  I have been considering working out the details and
starting to do any new development with this model and then slowly
converting existing apps but just haven't got around to it.

Scott Mildenberger

> -----Original Message-----
> From: D.BALE@handleman.com [SMTP:D.BALE@handleman.com]
> Sent: Wednesday, October 25, 2000 10:37 AM
> To:   MIDRANGE-L@midrange.com
> Subject:      TRYING undestanding new AS Iserv
> 
> Regarding "interactive"...
> 
> Please educate me (again?) on what does and what does not constitute
> interactive as far as a user using a display/keyboard/mouse (in other
> words,
> *not* what I consider a traditional "batch" job).  I.e., is a
> Client/Server
> app considered to be an interactive task on the AS/400?  Other examples?
> And,
> if I'm on the right path, is there a tool that converts a AS/400 green
> screen
> interactive task to a GUI of some sort and makes it a non-interactive
> task?
> 
> *AND*, if I can convert all interactive tasks so that they become
> non-interactive as far as the AS/400 is concerned (can't bring myself to
> call
> it batch), does that happen to translate that I'd be able to get more
> overall
> horsepower for less money, i.e., don't have to buy much interactive CPW?
> (Of
> course, did I just increase my costs on the client side with more required
> hardware and/or software?)
> 
> I thought I'd heard all this before, but it was rather moot in my previous
> environments.  Now I'm in a shop that's considering a major upgrade,
> consolidating several AS/400s into one LPAR box.  And so I wondered if
> this
> should be looked at before any decision is made.
> 
> Dan Bale
> IT - AS/400
> Handleman Company
> 248-362-4400  Ext. 4952
> 
> 
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