RE: [WEB400] Web UI design vs 5250 UI design

[Buck Calabro <Buck.Calabro@xxxxxxxxxxxx>]

>There is an answer.  It's a staged approach:
>1. Separate UI and business logic

Hi Joe!
  This first step is a doosy!  Let me start by saying that I am a complete
novice when it comes to the Brave New eWorld, so rather than arguing, I am
searching for answers... I hope I come across that way!

If I have a 3 program Classic application (sounds better than "Legacy"):
Enter/validate customer number (PGM1)
Enter/validate order header (PGM2)
Enter/validate order details (PGM3)

Separating the UI from each program is easy enough - I've used the data
queue method before when working with asynch devices like telephone
switches.  Separating the UI from the _application_ is somewhat harder,
because there is an implied relationship between the panels that PGM1
displays and those that PGM2 displays.

I suppose (typing whilst I think - ever dangerous!) that I could do the
program-UI decoupling as step 1a, and then write my own single panel UI that
"knows" about the individual RPG programs, and parses out the multiple
buffers from RPG to the single "buffer" of the new UI.  Step 1b.

Buck