Been there, done that.

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On Sunday, August 22, 2021, 3:05 PM, Eric D Rossman <edros...@us.ibm.com> wrote:

Bill, no need to get defensive. I have written z/OS and Linux (multiple 
platform) internals and also user-facing code. Guess which one is harder?

Rhetorical question. Both are really hard to do well.

z/OS internals are notoriously under-commented and under-understood (I 
wanted to make up a word).

Users are notoriously bad at doing "normal" things. They often do really 
unexpected things.

Anyone can write complex code. However, writing complex code that WORKS 
even when the user or application calling you is not also you (or written 
by you) is really hard.

Whether it's a massive behemoth (like z/OS) or a short 40-line REXX 
program, one should be able to appreciate quality code.

Claiming that writing in REXX isn't really programming is just rude and 
you should go think about what you have done, in my opinion.

Eric Rossman, CISSP®
ICSF Cryptographic Security Development
z/OS Enabling Technologies
edros...@us.ibm.com

> From: "Bill Johnson" <00000047540adefe-dmarc-requ...@listserv.ua.edu>
> 
> No bee in my bonnet. Just don’t like braggarts.
> What is more complex? The developers who wrote zOS or the 
> installation? The programs I wrote over my programming days were 
> much more complex than anything I’ve written in my SP days. And I’ve
> written REXX & CLIST. Not all that hard.


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