At our shop, C programming is done on z/OS since 1992, 
this is insurance math. The goal is to have the same source code
on all platforms (WIN, OS/2, Unixes, z/OS), and for us this works
perfectly. 

Until recently, we did no significant work on USS, but since 2 or 3 years
USS is more and more used to build things for "normal" z/OS and to 
do other things related to the development process. Some of our 
people have a good knowlegde of UNIX tools and they like USS much 
more than the "classical" MVS. 

Further opinions below.



Am Montag, 23. Februar 2009 17:10 schrieben Sie:
> Do folks "care" about USS? That is, do most z/OS shops actually use
> USS for anything beyond the things they're forced to (TCP/IP stuff,
> for example)?

not most, but some, IMO. 

>
> My experience suggests that the general answer is "No" (with
> exceptions, of course).
>
> The related question is: Do folks use C on z/OS much?

some shops yes, even for business critical applications

>
> And the converged question is: Do the two sets overlap? That is, do
> most/all of the folks who DO use C on z/OS do so under USS?

IMO the two things are independent. We did C for a long time
without using USS, and I know of others, where it is the same. 

>
> It's interesting trying to figure this out, and this is the best
> sample set I can easily get at...!
>
> Thanks.
>

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