Re: The Perpetual Myth of iSeries Obsolescence

["Tom Jedrzejewicz" <tomjedrz@xxxxxxxxx>]

On 4/28/06, Lou Forlini <lforlini@xxxxxxxxxxxxxxxxx> wrote:
> At 2:00 PM -0400 4/28/06, Wilt, Charles wrote:
> >But I'd be willing to bet that in most cases, you could find some
> >improvements in changing from green screen to GUI.
> >
> >The ROI might take a while, but eventually it would pay off.
>
>     For my part, I refuse to concede that point unless I see some
> serious studies that prove it.  Any papers I've read show the GUI
> having a small gain in the initial learning curve, followed by a
> measurably lower productivity cap for experienced users.  Surveys
> that show "users like it better" don't count.  Neither do surveys
> that say "users say they work faster".  They may generate a lot more
> activity to end up doing the same amount of work.

If we have had this discussion once we have had it 100 times.

If you take a green screen application and build it in a gui with the
same fields on the same screens, with buttons instead of F keys, there
will be a small bit of improvement.  But if you re-engineer the
application to use modern UI principles, you will get a dramatic
productivity improvement.  The chances are good that an existing
application can be re-engineered in green screen to be more
productive, but the GUI has (in my view) more room for improvements.

Have a great weekend.

--
Tom Jedrzejewicz
tomjedrz@xxxxxxxxx