> -----Original Message-----
> From: IBM Mainframe Discussion List 
> [mailto:[email protected]] On Behalf Of David Crayford
> Sent: Tuesday, December 22, 2009 8:03 AM
> To: [email protected]
> Subject: Re: Union Pacific Railroad ditches its mainframe for SOA
> 
> Timothy Sipples wrote:
> > 
> > It's probably also worth pointing out that, if you crack 
> open the textbook
> > definition of SOA (Service-Oriented Architecture), you 
> won't find "step 1:
> > throw everything away" anywhere. That would tend to be the 
> antithesis of
> > the definition, as a matter of fact.
> 
> While it's always disappointing to see another mainframe site 
> bite the 
> dust it's not too difficult to see why they have chosen to go for a 
> greenfields solution. The application is written in HLASM which is an 
> esoteric language with a shortage of skills. Secondly, they 
> want SOA and 
> would have to build a web services gateway or use a 
> middleware solution 
> which may be more expensive in the long term then re-writing the 
> application. I could be wrong...
> 

SOA is a platform neutral protocol. It can be implemented on z/OS as well as on 
Linux, MAC, *BSD, as well as Windows. The only "plus" of a non-z/OS platform is 
that there are more, cheaper, programmers on Windows et al. than on z/OS. It is 
easier to hire somebody with SOA and Windows background than SOA and z/OS. And 
those which such a background don't want to consider applying their knowledge 
on z/OS. I guess they're worried that we have "cooties".

Also many z/OS shops seem to be "legacy oriented" and don't want to consider 
implementing new technologies. Well, hopefully I'm wrong, but it is definately 
true around here. Management doesn't want the mainframe to embrace new software 
technology. Neither do the programmers nor even others in my group. I'm still 
the only one who has any understanding of z/OS UNIX and what can be done with 
it (even tho it is inferior to Linux in many ways, IMO). But I cannot use it in 
production because "nobody else understands it". So, instead, I download stuff 
to my Linux/Intel box and run "ad hoc" stuff there most of the time. This gets 
me kudos because I don't use up "expensive" z/OS CPU.

--
John McKown 
Systems Engineer IV
IT

Administrative Services Group

HealthMarkets(r)

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