Agreed Nathan with the same exception I have noted earlier in your posts on OA - OA is NOT limited to the write-read paradigm. Those limits are imposed by workstation data management and OA does not use that,

On Dec 31, 2019, at 1:37 PM, Nathan Andelin <nandelin@xxxxxxxxx> wrote:

Or has 5250 usage become insignificant?

It seems that we have this discussion every year in December as people look
toward the future. Sometimes it's more of a discussion about browser user
interfaces, or about application architecture.

From my perspective, 5250 has a long future for system administration. But
it should be deprecated for application development. Also, any derivative
of the write-read paradigm (including OA handlers) should be deprecated in
regard to user interfaces - in my opinion.

Also, as Jon and Vern have suggested - put business rules as close to the
database as possible. For me, that means putting that logic in what I like
to call "database handlers", which are procedures named on_read(),
on_write(), on_update(), on_delete(), which are invoked by a generic
database trigger utility.
This is the Midrange Systems Technical Discussion (MIDRANGE-L) mailing list
To post a message email: MIDRANGE-L@xxxxxxxxxxxxxxxxxx
To subscribe, unsubscribe, or change list options,
or email: MIDRANGE-L-request@xxxxxxxxxxxxxxxxxx
Before posting, please take a moment to review the archives

Please contact support@xxxxxxxxxxxx for any subscription related questions.

Help support by shopping at with our affiliate link:

As an Amazon Associate we earn from qualifying purchases.

This thread ...


Follow On AppleNews
Return to Archive home page | Return to MIDRANGE.COM home page

This mailing list archive is Copyright 1997-2022 by and David Gibbs as a compilation work. Use of the archive is restricted to research of a business or technical nature. Any other uses are prohibited. Full details are available on our policy page. If you have questions about this, please contact [javascript protected email address].

Operating expenses for this site are earned using the Amazon Associate program and Google Adsense.