On Sun, 6 Feb 2022 12:59:03 -0800, Charles Mills wrote:

>There was a tendency to put every topic in every manual. I have an OS/VS
>COBOL P/G in front of me (1981) and it includes a lot of JCL tutorial: there
>is an entire three-page section titled "Examples of DD Statements Used To
>Create Data Sets."
> 
Yes.

The TSO Rexx Ref. tries to teach too much TSO syntax.

The ISPF Edit Ref. tries to teach too much CLIST syntax.
(Why not Rexx, if anything.  But it's getting better lately.)

The cost of this is the burden of redundant updates if the
command environment changes.  And the risk of failure to
synchronize updates.

The JCL Ref. has separate chapters for "DD *" and "DD DATA".
Parts have been copied from one to the other without needed
changes.  I've suggested in vain that they be consolidated with
side notes for the very few differences.

-- 
gil

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