There are issues with directly porting VLF-WIN/WEB application sessions to VLF-ONE application sessions.
Many VLF-WIN and VLF-WEB RAMP applications were developed with one (or a few) very large and complex 5250 sessions, like this:
They can be ported directly to VLF-ONE and will often run immediately without any changes.
However, the potentially problematic result is that you are using the worst case scenario VLF-ONE 5250 application session approach (as previously discussed):
Please note that this diagram’s visualization of large and complex may be orders of magnitude simpler that the reality of your large and complex 5250 application session(s).