1. I have no idea. It is certainly a relic of olden times.

2. Yes, or the vector that @Peter has described that led to this thread 
offshoot. You can get to the vector with four (?) Loads, and then presumably 
one or two more to get to the actual specific "user" data you need. I suspect 
the overhead for N/T services -- while pretty efficient -- is greater.

Charles


-----Original Message-----
From: IBM Mainframe Discussion List [mailto:[email protected]] On Behalf 
Of Paul Gilmartin
Sent: Saturday, November 30, 2019 12:20 PM
To: [email protected]
Subject: Re: WTO

On Sat, 30 Nov 2019 11:31:51 -0800, Charles Mills wrote:

>I think the problem with CVTUSER is that there is only one field but lots of 
>"users" (customer, vendor, other customer department, other vendor, ...).
> 
Is this a relic of single address space design?

Is this something better addressed by name/token services?

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