Well,
I thought there are important differences:
- hotels usually have more "seats".
- hotel have no time schedule for departures and arrivals. You cannot
book a seat 5 minutes after departure, while in hotel it is possible all
the time. IMHO this is the most important difference.
- of course both: hotels and planes have finite capacity and there are
no "secondary extents". However full-empty is a matter of exception in
the code, but not matter of high transaction volumes.
To be honest, out of curiosity I always peek the systems in use when I'm
served as customer. That's why when I was shopping I observed 3270
terminal emulator in the Peek & Cloppenburg shop. Instead of choosing
new coat. ;-)
I also noticed 5250's in some megastores. And to be honest - a lot of
obsolete stuff in american hotels. This is the last place when my VISA
card was read mechanically - I mean embossed numbers, not even magnetic
stripe! It was long after my card had a chip. And I observed green
screens, but often it had HP logo. What system? I don't know, I didn't
bother clerks.
Last, but not least: I'm aware of only two hotel companies using TPF:
IHS and Marriott (public information). Maybe other also use it, surely
there are more big hotel networks.
--
Radoslaw Skorupka
(looking for new job)
Lodz, Poland
W dniu 20.03.2021 o 04:17, Mike Schwab pisze:
Yep. Flight / hotel number + seat / room number + date (/ time) +
customer number as the key with billing details.
On Fri, Mar 19, 2021 at 8:59 PM Bill Johnson
<00000047540adefe-dmarc-requ...@listserv.ua.edu> wrote:
Yup, hotel reservation isn’t much different than an airline reservation.
Sent from Yahoo Mail for iPhone
On Friday, March 19, 2021, 9:25 PM, Attila Fogarasi <fogar...@gmail.com> wrote:
Why be surprised at hotels on the list (of zTPF users)? A hotel is just an
airplane without wings :)
zTPF is great for any high volume transaction where there are few
transaction types but many per second (IBM claims million tps) and at low
cost. The tradeoff is constrained application function, but not so bad now
with zTPF support all the open interfaces such as REST. Think of it as a
stripped down IMS or CICS, with much leaner application interface.
Currently only C/C++, Java and assembler are supported as a programming
language, and some things only in C/C++. zTPF has no LE malaise that z/OS
is saddled with :)
On Sat, Mar 20, 2021 at 12:00 PM Bill Johnson <
00000047540adefe-dmarc-requ...@listserv.ua.edu> wrote:
Been around for decades as the airline system but usable by any industry
requiring massive throughput.
Sent from Yahoo Mail for iPhone
On Friday, March 19, 2021, 8:16 PM, Radoslaw Skorupka <
r.skoru...@hotmail.com> wrote:
Old only?
I have read about relatively new and small airlines, not mentioned below.
And of course airline control program is not really applicable to banks
and hotels. In fact I understand banks, but I'm really surprized at the
hotels on the list. What transaction workload do the have???
--
Radoslaw Skorupka
(looking for new job)
Lodz, Poland
W dniu 20.03.2021 o 01:11, Bill Johnson pisze:
The old yet still used airline control program.
Sent from Yahoo Mail for iPhone
On Friday, March 19, 2021, 8:03 PM, Radoslaw Skorupka <
r.skoru...@hotmail.com> wrote:
I know the IBM-MAIN forum is mostly about z/OS, but I wanted to ask
about about z/TPF - it seems to be on topic.
z/TPF
TPF is the system I have never seen.
I'm pretty sure there is no TPF installation in Poland.
However I'm curious about the following:
1. What is typical size of TPF system? I mean MIPS sizing. Is it huge or
rather small?
2. Does TPF typically run in bare LPAR or it is usually run under z/VM,
like z/VSE is?
3. What is the pricing of TPF?
3.1 Is it just single price per system, I mean no paid optional features
like in z/OS?
3.2 Is it expensive? I heard, it is much more expensive, when compared
to z/OS running on the same MIPS base.
4. Any special settings in LPAR definitions? I remember about specia
LPAR mode - ESA/TPF or so. However I don't know any explanation of the
difference.
5. Does it use regular CP's only? Or maybe there are some workloads
applicable to zIIP or even other processors?
6. Does it use SAP processors more extensively than other OSes? I heard
about it.
7. Does exist any z/TPF forum like IBM-MAIN?
8. What are known customers? I'm not asking about company secrets, but I
know (knowledge publicly available) about Citi, Marriott, VISA, BofA,
American Airlines, BA, Sabre, Amadeus and some more. Any other known
notable customers? Banks? ATMs? Reservations? Hotels? Anything else?
Any clue will be appreciated. I have to secret plan, I just want to
learn about it. Just curiosity.
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