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I have been out for a couple of days, and I see that this topic has a
lot of interest.

I use CGIDEV2, my programming language is RPG, I do not use others
(yet).  Program logic for web is very similar to 5250, you receive some
data, prepare the response and display, the difference is that instead
or records in a display file  I use sections in an html file. Just
different syntax.

Cost of ownership will be the same between web and 5250, if you stay in
the platform, it will be more if you move to cheap servers.

Response time for web pages I almost always keep well under a second, if
5250 is faster nobody will really notice.

CPU time in the client PC will not make a difference, if 5250 uses less
CPU, the PC it will have more idle time, cost the same.

Business rules I enforce at the data base level, RI, check constraints
and triggers.  But the database gives ugly response when something is
wrong, so I add a layer of control, with friendly messages in the user
interface.


El 1/1/20 a las 21:02, Patrik Schindler escribió:
Hello Raul,

Am 31.12.2019 um 16:04 schrieb Raul Jager <raul@xxxxxxxxxx>:

Yes I am really interested about why you are opposed.
See my other post to Martin Booth (?). There are some explanations on that topic I don't want to repeat here.

My main objective is to serve better to my users, IBM i has a better cost of ownership,
That TCO thing is highly dependent on how people calculate. I suspect that calculations will be different depending on who sells and everybody is like "We have the smaller TCO!".

but 5250 gives a sense of antic, and sometimes people go to other platforms that looks more "modern".
Depends on the people, I think.

Local PC cpu cost the same rendering a nice web page or using a 5250 emulator.
No, it certainly it is not. Pixelating fonts into a window is less CPU intensive than additionally drawing eye candy with fancy JPG graphics to decompress (and transfer over the wire also). Depending on user speed, the whole HTML stuff can appear slow compared to plain text. Even native Windows applications with .NET or whatnot can be considerably slower.
However, users aiming from field to field with the mouse will barely notice.

Hmm. Comparing the situation into the Linux sysadmin area, it appears that power users prefer text interfaces while rookies need their control panel to change system settings.

Web is available in every device
Yes, that's true.

emulator you need to install.
I don't see a problem with that.

It is hard in telephones.
Web without special care about tiny screens is also hard in telephones.

I think I get what you mean. Mobile devices are definitely a thing nowadays. I'm just not sure if they are a thing where IBM i is usually processing data.

:wq! PoC

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